Efficient navigation is vital for a functional website, but not everyone uses the internet the same way. While most visitors either scroll on mobile or click through with a mouse, many people only use their keyboards. Up to 10 million American adults have carpal tunnel syndrome, which may cause pain when holding a mouse, and vision problems can make it difficult to follow a cursor. Consequently, you should keep your site keyboard navigable to achieve universal appeal and accessibility.

Understanding Keyboard Navigation

Keyboard navigation allows users to engage with your website solely through keyboard input. That includes using shortcuts and selecting elements with the Tab and Enter keys.

There are more than 500 keyboard shortcuts among operating systems and specific apps your audience may use. Standard ones for web navigation include Ctrl + F to find words or resources, Shift + Arrow to select text, and Ctrl + Tab to move between browser tabs. While these are largely the responsibilities of the software companies behind the specific browser or OS, you should still consider them.

Single-button navigation is another vital piece of keyboard navigability. Users may move between clickable items with the Tab and Shift keys, use the Arrow keys to scroll, press Enter or Space to “click” a link, and exit pop-ups with Esc.

The Washington Post homepage goes further. Pressing Tab highlights clickable elements as it should, but the first button press brings up a link to the site’s accessibility statement first. Users can navigate past this, but including it highlights how the design understands how keyboard navigability is a matter of accessibility.

You should understand how people may use these controls so you can build a site that facilitates them. These navigation options are generally standard, so any deviation or lack of functionality will stand out. Ensuring keyboard navigability, especially in terms of enabling these specific shortcuts and controls, will help you meet such expectations and avoid turning users away.

Why Keyboard Navigation Matters In Web Design

Keyboard navigability is crucial for a few reasons. Most notably, it makes your site more accessible. In the U.S. alone, over one in four people have a disability, and many such conditions affect technology use. For instance, motor impairments make it challenging for someone to use a standard mouse, and users with vision problems typically require keyboard and screen reader use.

Beyond accounting for various usage needs, enabling a wider range of control methods makes a site convenient. Using a keyboard rather than a mouse is faster when it works as it should and may feel more comfortable. Considering how workers spend nearly a third of their workweek looking for information, any obstacles to efficiency can be highly disruptive.

Falling short in these areas may lead to legal complications. Regulations like the Americans with Disabilities Act necessitate tech accessibility. While the ADA has no binding rules for what constitutes an accessible website, it specifically mentions keyboard navigation in its nonbinding guidance. Failing to support such functionality does not necessarily mean you’ll face legal penalties, but courts can use these standards to inform their decision on whether your site is reasonably accessible.

In 2023, Kitchenaid faced a class-action lawsuit for failing to meet such standards. Plaintiffs alleged that the company’s site didn’t support alt text or keyboard navigation, making it inaccessible to users with visual impairments. While the case ultimately settled out of court, it’s a reminder of the potential legal and financial repercussions of overlooking inclusivity.

Outside the law, an inaccessible site presents ethical concerns, as it shows preferential treatment for those who can use a mouse, even if that’s unintentional. Even without legal action, public recognition of this bias may lead to a drop in visitors and a tainted public image.

Elements Of A Keyboard-Navigable Site

Thankfully, ensuring keyboard navigability is a straightforward user experience design practice. Because navigation is standard across OSes and browsers, keyboard-accessible sites employ a few consistent elements.

Focus Indicators

Web Accessibility In Mind states that sites must provide a visual indicator of elements currently in focus when users press Tab. Focus indicators are typically a simple box around the highlighted icon.

These are standard in CSS, but some designers hide them, so avoid using outline:0 or outline:none to limit their visibility. You can also increase the contrast or change the indicator’s color in CSS.

The CNN Breaking News homepage is a good example of a strong focus indicator. Pressing Tab immediately brings up the box, which is bold enough to see easily and even uses a white border when necessary to stand out against black or dark-colored site elements.

Logical Tab Order

The order in which the focus indicator moves between elements also matters. Generally speaking, pressing the Tab key should move it from left to right and top to bottom — the same way people read in English.

A few errors can stand in the way. Disabled buttons disrupt keyboard navigation flow by skipping an element with no explanation or highlighting it without making it clickable. Similarly, an interface where icons don’t fall in a predictable left-to-right, top-to-bottom order will make logical tab movement difficult.

The Sutton Maddock Vehicle Rental site is a good example of what not to do. When you press Tab, the focus indicator jumps from “Contact” to the Facebook link before going backward to the Twitter link. It starts at the right and moves left when it goes to the next line — the opposite order of what feels natural.

Skip Navigation Links

Skip links are also essential. These interactive elements let keyboard users jump to specific content without repeated keystrokes. Remember, these skips must be one of the first areas highlighted when you press Tab so they work as intended.

The HSBC Group homepage has a few skip navigation links. Pressing Tab pulls up three options, letting users quickly jump to whichever part of the site interests them.

Keyboard-Accessible Interactive Elements

Finally, all interactive elements on a keyboard-navigable site should be accessible via keystrokes. Anything people can click on or drag with a cursor should also support navigation and interaction. Enabling this is as simple as letting users select all items with the Tab or Arrow keys and press them with Space or Enter.

Appropriately, this Arizona State University page on keyboard accessibility showcases this concept well. All drop-down menus are possible to open by navigating to them via Tab and pressing Enter, so users don’t need a mouse to interact with them.

How to Test for Keyboard Navigability

After designing a keyboard-accessible UX, you should test it to ensure that it works properly. The easiest way to do this is to explore the site solely with your keyboard. The chart below outlines the criteria to look for when determining whether your site is legitimately keyboard navigable.

The Web Content Accessibility Guidelines outline two test rules to verify keyboard navigability:

1. The first ensures all interactive elements are accessible via the Tab key,
2. The second checks for keyboard scroll functionality.

Employ both standards to review your UX before making a site live.

Typical issues include the inability to highlight elements with the Tab key or things that don’t fall in a natural order. You can discover both problems by trying to access everything with your keyboard. However, you may prefer to conduct a navigability audit through a third party. Many private companies offer these services, but you can also use the Bureau of Internet Accessibility for a basic WCAG audit.

Make Your Site Keyboard Navigable Today

Keyboard navigability ensures you cater to all needs and preferences for an inclusive, accessible website design. While it’s straightforward to implement, it’s also easy to miss, so remember these principles when designing your UX and testing your site.

WCAG provides several techniques you can employ to meet keyboard accessibility standards and enhance your users’ experience:

• Technique G90, for keyboard-triggered event handlers
• Technique G202, for general keyboard functionality
• Technique H91, for forming controls and links in HTML

Follow these guidelines and use WCAG’s test rules to create an accessible site. Remember to re-check it every time you add elements or change your UX.

Additionally, consider the following recommended reads to learn more about keyboards and their role in accessibility:

• “A Guide To Keyboard Accessibility: HTML And CSS (Part 1),” Cristian Díaz
• “A Guide To Keyboard Accessibility: JavaScript (Part 2),” Cristian Díaz
• “A Complete Guide To Mechanical Keyboards,” Ben Frain
• “UX Improvements For Keyboard Accessibility,” Vitaly Friedman
• “I Used The Web For A Day With Just A Keyboard,” Chris Ashton

User-friendliness is an industry best practice that demonstrates your commitment to inclusivity for all. Even users without disabilities will appreciate intuitive, efficient keyboard navigation.

(yk)

Since their introduction in 1999, the Web Content Accessibility Guidelines (WCAG) have shaped how we design and develop inclusive digital products. The WCAG 2.x series, released in 2008, introduced clear technical criteria judged in a binary way: either a success criterion is met or not. While this model has supported regulatory clarity and auditability, its “all-or-nothing” nature often fails to reflect the nuance of actual user experience (UX).

Over time, that disconnect between technical conformance and lived usability has become harder to ignore. People engage with digital systems in complex, often nonlinear ways: navigating multistep flows, dynamic content, and interactive states. In these scenarios, checking whether an element passes a rule doesn’t always answer the main question: can someone actually use it?

WCAG 3.0 is still in draft, but is evolving — and it represents a fundamental rethinking of how we evaluate accessibility. Rather than asking whether a requirement is technically met, it asks how well users with disabilities can complete meaningful tasks. Its new outcome-based model introduces a flexible scoring system that prioritizes usability over compliance, shifting focus toward the quality of access rather than the mere presence of features.

Draft Status: Ambitious, But Still Evolving

WCAG 3.0 was first introduced as a public working draft by the World Wide Web Consortium (W3C) Accessibility Guidelines Working Group in early 2021. The draft is still under active development and is not expected to reach W3C Recommendation status for several years, if not decades, by some accounts. This extended timeline reflects both the complexity of the task and the ambition behind it:

WCAG 3.0 isn’t just an update — it’s a paradigm shift.

Unlike WCAG 2.x, which focused primarily on web pages, WCAG 3.0 aims to cover a much broader ecosystem, including applications, tools, connected devices, and emerging interfaces like voice interaction and extended reality. It also rebrands itself as the W3C Accessibility Guidelines (while the WCAG acronym remains the same), signaling that accessibility is no longer a niche concern — it’s a baseline expectation across the digital world.

Importantly, WCAG 3.0 will not immediately replace 2.x. Both standards will coexist, and conformance to WCAG 2.2 will continue to be valid and necessary for some time, especially in legal and policy contexts.

This expansion isn’t just technical.

WCAG 3.0 reflects a deeper philosophical shift: accessibility is moving from a model of compliance toward a model of effectiveness.

“

Rules alone can’t capture whether a system truly works for someone. That’s why WCAG 3.0 leans into flexibility and future-proofing, aiming to support evolving technologies and real-world use over time. It formalizes a principle long understood by practitioners:

Inclusive design isn’t about passing a test; it’s about enabling people.

A New Structure: From Success Criteria To Outcomes And Methods

WCAG 2.x is structured around four foundational principles — Perceivable, Operable, Understandable, and Robust (aka POUR) — and testable success criteria organized into three conformance levels (A, AA, AAA). While technically precise, these criteria often emphasize implementation over impact.

WCAG 3.0 reorients this structure toward user needs and real outcomes. Its hierarchy is built on:

• Guidelines: High-level accessibility goals tied to specific user needs.
• Outcomes: Testable, user-centered statements (e.g., “Users have alternatives for time-based media”).
• Methods: Technology-specific or agnostic techniques that help achieve the outcomes, including code examples and test instructions.
• How-To Guides: Narrative documentation that provides practical advice, user context, and design considerations.

This shift is more than organizational. It reflects a deeper commitment to aligning technical implementation with UX. Outcomes speak the language of capability, which is about what users should be able to do (rather than just technical presence).

Crucially, outcomes are also where conformance scoring begins to take shape. For example, imagine a checkout flow on an e-commerce website. Under WCAG 2.x, if even one field in the checkout form lacks a label, the process may fail AA conformance entirely. However, under WCAG 3.0, that same flow might be evaluated across multiple outcomes (such as keyboard navigation, form labeling, focus management, and error handling), with each outcome receiving a separate score. If most areas score well but the error messaging is poor, the overall rating might be “Good” instead of “Excellent”, prompting targeted improvements without negating the entire flow’s accessibility.

From Binary Checks To Graded Scores

Rather than relying on pass or fail outcomes, WCAG 3.0 introduces a scoring model that reflects how well accessibility is supported. This shift allows teams to recognize partial successes and prioritize real improvements.

How Scoring Works

Each outcome in WCAG 3.0 is evaluated through one or more atomic tests. These can include the following:

• Binary tests: “Yes” and “no” outcomes (e.g., does every image have alternative text?)
• Percentage-based tests: Coverage-based scoring (e.g., what percentage of form fields have labels?)
• Qualitative tests: Rated judgments based on criteria (e.g., how descriptive is the alternative text?)

The result of these tests produces a score for each outcome, often normalized on a 0-4 or 0-5 scale, with labels like Poor, Fair, Good, and Excellent. These scores are then aggregated across functional categories (vision, mobility, cognition, etc.) and user flows.

This allows teams to measure progress, not just compliance. A product that improves from “Fair” to “Good” over time shows real evolution — a concept that doesn’t exist in WCAG 2.x.

Critical Errors: A Balancing Mechanism

To ensure that severity still matters, WCAG 3.0 introduces critical errors, which are high-impact accessibility failures that can override an otherwise positive score.

For example, consider a checkout flow. Under WCAG 2.x, a single missing label might cause the entire flow to fail conformance. WCAG 3.0, however, evaluates multiple outcomes — like form labeling, keyboard access, and error handling — each with its own score. Minor issues, such as unclear error messages or a missing label on an optional field, might lower the rating from “Excellent” to “Good”, without invalidating the entire experience.

But if a user cannot complete a core action, like submitting the form, making a purchase, or logging in, that constitutes a critical error. These failures directly block task completion and significantly reduce the overall score, regardless of how polished the rest of the experience is.

On the other hand, problems with non-essential features — like uploading a profile picture or changing a theme color — are considered lower-impact and won’t weigh as heavily in the evaluation.

Conformance Levels: Bronze, Silver, Gold

In place of categorizing conformance in tiers of Level A, Level AA, and Level AAA, WCAG 3.0 proposes three different conformance tiers:

• Bronze: The new minimum. It is comparable to WCAG 2.2 Level AA, but based on scoring and foundational outcomes. The requirements are considered achievable via automated and guided manual testing.
• Silver: This is a higher standard, requiring broader coverage, higher scores, and usability validation from people with disabilities.
• Gold: The highest tier. Represents exemplary accessibility, likely requiring inclusive design processes, innovation, and extensive user involvement.

Unlike in WCAG 2.2, where Level AAA is often seen as aspirational and inconsistent, these levels are intended to incentivize progression. They can also be scoped in the sense that teams can claim conformance for a checkout flow, mobile app, or specific feature, allowing iterative improvement.

What You Should Do Now

While WCAG 3.0 is still being developed, its direction is clear. That said, it’s important to acknowledge that the guidelines are not expected to be finalized in a few years. Here’s how teams can prepare:

• Continue pursuing WCAG 2.2 Level AA. It remains the most robust, recognized standard.
• Familiarize yourself with WCAG 3.0 drafts, especially the outcomes and scoring model.
• Start thinking in outcomes. Focus on what users need to accomplish, not just what features are present.
• Embed accessibility into workflows. Shift left. Don’t test at the end — design and build with access in mind.
• Involve users with disabilities early and regularly.

These practices won’t just make your product more inclusive; they’ll position your team to excel under WCAG 3.0.

Potential Downsides

Even though WCAG 3.0 presents a bold step toward more holistic accessibility, several structural risks deserve early attention, especially for organizations navigating regulation, scaling design systems, or building sustainable accessibility practices. Importantly, many of these risks are interconnected: challenges in one area may amplify issues in others.

Subjective Scoring

The move from binary pass or fail criteria to scored evaluations introduces room for subjective interpretation. Without standardized calibration, the same user flow might receive different scores depending on the evaluator. This makes comparability and repeatability harder, particularly in procurement or multi-vendor environments. A simple alternative text might be rated as “adequate” by one team and “unclear” by another.

Reduced Compliance Clarity

That same subjectivity leads to a second concern: the erosion of clear compliance thresholds. Scored evaluations replace the binary clarity of “compliant” or “not” with a more flexible, but less definitive, outcome. This could complicate legal enforcement, contractual definitions, and audit reporting. In practice, a product might earn a “Good” rating while still presenting critical usability gaps for certain users, creating a disconnect between score and actual access.

Legal and Policy Misalignment

As clarity around compliance blurs, so does alignment with existing legal frameworks. Many current laws explicitly reference WCAG 2.x and its A, AA, and AAA levels (e.g. Section 508 of the Rehabilitation Act of 1973, European Accessibility Act, The Public Sector Bodies (Websites and Mobile Applications) (No. 2) Accessibility Regulations 2018).

Until WCAG 3.0 is formally mapped to those standards, its use in regulated contexts may introduce risk. Teams operating in healthcare, finance, or public sectors will likely need to maintain dual conformance strategies in the interim, increasing cost and complexity.

Risk Of Minimum Viable Accessibility

Perhaps most concerning, this ambiguity can set the stage for a “minimum viable accessibility” mindset. Scored models risk encouraging “Bronze is good enough” thinking, particularly in deadline-driven environments. A team might deprioritize improvements once they reach a passing grade, even if essential barriers remain.

For example, a mobile app with strong keyboard support but missing audio transcripts could still achieve a passing tier, leaving some users excluded.

Conclusion

WCAG 3.0 marks a new era in accessibility — one that better reflects the diversity and complexity of real users. By shifting from checklists to scored evaluations and from rigid technical compliance to practical usability, it encourages teams to prioritize real-world impact over theoretical perfection.

As one might say, “It’s not about the score. It’s about who can use the product.” In my own experience, I’ve seen teams pour hours into fixing minor color contrast issues while overlooking broken keyboard navigation, leaving screen reader users unable to complete essential tasks. WCAG 3.0’s focus on outcomes reminds us that accessibility is fundamentally about functionality and inclusion.

At the same time, WCAG 3.0’s proposed scoring models introduce new responsibilities. Without clear calibration, stronger enforcement patterns, and a cultural shift away from “good enough,” we risk losing the very clarity that made WCAG 2.x enforceable and actionable. The promise of flexibility only works if we use it to aim higher, not to settle earlier.

“

For teams across design, development, and product leadership, this shift is a chance to rethink what success means. Accessibility isn’t about ticking boxes — it’s about enabling people.

By preparing now, being mindful of the risks, and focusing on user outcomes, we don’t just get ahead of WCAG 3.0 — we build digital experiences that are truly usable, sustainable, and inclusive.

Further Reading On SmashingMag

• “A Roundup Of WCAG 2.2 Explainers,” Geoff Graham
• “Getting To The Bottom Of Minimum WCAG-Conformant Interactive Element Size,” Eric Bailey
• “How To Make A Strong Case For Accessibility,” Vitaly Friedman
• “A Designer’s Accessibility Advocacy Toolkit,” Yichan Wang

(gg, yk)

This article is sponsored by TetraLogical

Neurodivergent needs are often considered as an edge case that doesn’t fit into common user journeys or flows. Neurodiversity tends to get overlooked in the design process. Or it is tackled late in the process, and only if there is enough time.

But people aren’t edge cases. Every person is just a different person, performing tasks and navigating the web in a different way. So how can we design better, more inclusive experiences that cater to different needs and, ultimately, benefit everyone? Let’s take a closer look.

Neurodiversity Or Neurodivergent?

There is quite a bit of confusion about both terms on the web. Different people think and experience the world differently, and neurodiversity sees differences as natural variations, not deficits. It distinguishes between neurotypical and neurodivergent people.

• Neurotypical people see the world in a “typical” and widely perceived as expected way.
• Neurodivergent people experience the world differently, for example, people with ADHD, dyslexia, dyscalculia, synesthesia, and hyperlexia.

According to various sources, around 15–40% of the population has neurodivergent traits. These traits can be innate (e.g., autism) or acquired (e.g., trauma). But they are always on a spectrum, and vary a lot. A person with autism is not neurodiverse — they are neurodivergent.

One of the main strengths of neurodivergent people is how imaginative and creative they are, coming up with out-of-the-box ideas quickly. With exceptional levels of attention, strong long-term memory, a unique perspective, unbeatable accuracy, and a strong sense of justice and fairness.

Being different in a world that, to some degree, still doesn’t accept these differences is exhausting. So unsurprisingly, neurodivergent people often bring along determination, resilience, and high levels of empathy.

Design With People, Not For Them

As a designer, I often see myself as a path-maker. I’m designing reliable paths for people to navigate to their goals comfortably. Without being blocked. Or confused. Or locked out.

That means respecting the simple fact that people’s needs, tasks, and user journeys are all different, and that they evolve over time. And: most importantly, it means considering them very early in the process.

Better accessibility is better for everyone. Instead of making decisions that need to be reverted or refined to be compliant, we can bring a diverse group of people — with accessibility needs, with neurodiversity, frequent and infrequent users, experts, newcomers — in the process, and design with them, rather than for them.

Neurodiversity & Inclusive Design Resources

A wonderful resource that helps us design for cognitive accessibility is Stéphanie Walter’s Neurodiversity and UX toolkit. It includes practical guidelines, tools, and resources to better understand and design for dyslexia, dyscalculia, autism, and ADHD.

Another fantastic resource is Will Soward’s Neurodiversity Design System. It combines neurodiversity and user experience design into a set of design standards and principles that you can use to design accessible learning interfaces.

Last but not least, I’ve been putting together a few summaries about neurodiversity and inclusive design over the last few years, so you might find them helpful, too:

• ADHD
• Autism
• Children
• Colorblindness
• Deafness
• Dyscalculia
• Dyslexia
• Legibility
• Left-Handed Users
• Mental Health
• Motivation
• Older Adults
• Screen Readers
• Teenagers

A huge thank-you to everyone who has been writing, speaking, and sharing articles, resources, and toolkits on designing for diversity. The topic is often forgotten and overlooked, but it has an incredible impact. 👏🏼👏🏽👏🏾

(vf, il, yk)

If you haven’t encountered ARIA before, great! It’s a chance to learn something new and exciting. If you have heard of ARIA before, this might help you better understand it or maybe even teach you something new!

These are all things I wish someone had told me when I was getting started on my web accessibility journey. This post will:

• Provide a mindset for how to approach ARIA as a concept,
• Debunk some common misconceptions, and
• Provide some guiding thoughts to help you better understand and work with it.

It is my hope that in doing so, this post will help make an oft-overlooked yet vital corner of web design and development easier to approach.

What This Post Is Not

This is not a recipe book for how to use ARIA to build accessible websites and web apps. It is also not a guide for how to remediate an inaccessible experience. A lot of accessibility work is highly contextual. I do not know the specific needs of your project or organization, so trying to give advice here could easily do more harm than good.

Instead, think of this post as a “know before you go” guide. I’m hoping to give you a good headspace to approach ARIA, as well as highlight things to watch out for when you undertake your journey. So, with that out of the way, let’s dive in!

So, What Is ARIA?

ARIA is what you turn to if there is not a native HTML element or attribute that is better suited for the job of communicating interactivity, purpose, and state.

Think of it like a spice that you sprinkle into your markup to enhance things.

Adding ARIA to your HTML markup is a way of providing additional information to a website or web app for screen readers and voice control software.

• Interactivity means the content can be activated or manipulated. An example of this is navigating to a link’s destination.
• Purpose means what something is used for. An example of this is a text input used to collect someone’s name.
• State means the current status content has been placed in and controlled by states, properties, and values. An example of this is an accordion panel ​​that can either be expanded or collapsed.

Here is an illustration to help communicate what I mean by this:

• The presence of HTML’s button element will instruct assistive technology to report it as a button, letting someone know that it can be activated to perform a predefined action.
• The presence of the text string “Mute” will be reported by assistive technology to clue the person into what the button is used for.
• The presence of aria-pressed="true" means that someone or something has previously activated the button, and it is now in a “pushed in” state that sustains its action.

This overall pattern will let people who use assistive technology know:

1. If something is interactive,
2. What kind of interactive behavior it performs, and
3. Its current state.

ARIA’s History

ARIA has been around for a long time, with the first version published on September 26th, 2006.

ARIA was created to provide a bridge between the limitations of HTML and the need for making interactive experiences understandable by assistive technology.

“

The latest version of ARIA is version 1.2, published on June 6th, 2023. Version 1.3 is slated to be released relatively soon, and you can read more about it in this excellent article by Craig Abbott.

You may also see it referred to as WAI-ARIA, where WAI stands for “Web Accessibility Initiative.” The WAI is part of the W3C, the organization that sets standards for the web. That said, most accessibility practitioners I know call it “ARIA” in written and verbal communication and leave out the “WAI-” part.

The Spirit Of ARIA Reflects The Era In Which It Was Created

The reason for this is simple: The web was a lot less mature in the past than it is now. The most popular operating system in 2006 was Windows XP. The iPhone didn’t exist yet; it was released a year later.

From a very high level, ARIA is a snapshot of the operating system interaction paradigms of this time period. This is because ARIA recreates them.

The Mindset

Smartphones with features like tappable, swipeable, and draggable surfaces were far less commonplace. Single Page Application “web app” experiences were also rare, with Ajax-based approaches being the most popular. This means that we have to build the experiences of today using the technology of 2006. In a way, this is a good thing. It forces us to take new and novel experiences and interrogate them.

Interactions that cannot be broken down into smaller, more focused pieces that map to ARIA patterns are most likely inaccessible. This is because they won’t be able to be operated by assistive technology or function on older or less popular devices.

I may be biased, but I also think these sorts of novel interactions that can’t translate also serve as a warning that a general audience will find them to be confusing and, therefore, unusable. This belief is important to consider given that the internet serves:

• An unknown number of people,
• Using an unknown number of devices,
• Each with an unknown amount of personal customizations,
• Who have their own unique needs and circumstances and
• Have unknown motivational factors.

Interaction Expectations

Contemporary expectations for keyboard-based interaction for web content — checkboxes, radios, modals, accordions, and so on — are sourced from Windows XP and its predecessor operating systems. These interaction models are carried forward as muscle memory for older people who use assistive technology. Younger people who rely on assistive technology also learn these de facto standards, thus continuing the cycle.

What does this mean for you? Someone using a keyboard to interact with your website or web app will most likely try these Windows OS-based keyboard shortcuts first. This means things like pressing:

• Enter to navigate to a link’s destination,
• Space to activate buttons,
• Home and End to jump to the start or end of a list of items, and so on.

It’s Also A Living Document

This is not to say that ARIA has stagnated. It is constantly being worked on with new additions, removals, and clarifications. Remember, it is now at version 1.2, with version 1.3 arriving soon.

In parallel, HTML as a language also reflects this evolution. Elements were originally created to support a document-oriented web and have been gradually evolving to support more dynamic, app-like experiences. The great bit here is that this is all conducted in the open and is something you can contribute to if you feel motivated to do so.

ARIA Has Rules For Using It

There are five rules included in ARIA’s documentation to help steer how you approach it:

1. Use a native element whenever possible.
   An example would be using an anchor element (<a>) for a link rather than a div with a click handler and a role of link.
2. Don’t adjust a native element’s semantics if at all possible.
   An example would be trying to use a heading element as a tab rather than wrapping the heading in a semantically neutral div.
3. Anything interactive has to be keyboard operable.
   If you can’t use it with a keyboard, it isn’t accessible. Full stop.
4. Do not use role="presentation" or aria-hidden="true" on a focusable element.
   This makes something intended to be interactive unable to be used by assistive technology.
5. Interactive elements must be named.
   An example of this is using the text string “Print” for a button element.

Observing these five rules will do a lot to help you out. The following is more context to provide even more support.

ARIA Has A Taxonomy

There is a structured grammar to ARIA, and it is centered around roles, as well as states and properties.

Roles

A Role is what assistive technology reads and then announces. A lot of people refer to this in shorthand as semantics. HTML elements have implied roles, which is why an anchor element will be announced as a link by screen readers with no additional work.

Implied roles are almost always better to use if the use case calls for them. Recall the first rule of ARIA here. This is usually what digital accessibility practitioners refer to when they say, “Just use semantic HTML.”

There are many reasons for favoring implied roles. The main consideration is better guarantees of support across an unknown number of operating systems, browsers, and assistive technology combinations.

Roles have categories, each with its own purpose. The Abstract role category is notable in that it is an organizing supercategory not intended to be used by authors:

Abstract roles are used for the ontology. Authors MUST NOT use abstract roles in content.

<!-- This won't work, don't do it --> <h2 role="sectionhead"> Anatomy and physiology </h2> <!-- Do this instead --> <section aria-labeledby="anatomy-and-physiology"> <h2 id="anatomy-and-physiology"> Anatomy and physiology </h2> </section> 

Additionally, in the same way, you can only declare ARIA on certain things, you can only declare some ARIA as children of other ARIA declarations. An example of this is the the listitem role, which requires a role of list to be present on its parent element.

So, what’s the best way to determine if a role requires a parent declaration? The answer is to review the official definition.

States And Properties

States and properties are the other two main parts of ARIA‘s overall taxonomy.

Implicit roles are provided by semantic HTML, and explicit roles are provided by ARIA. Both describe what an element is. States describe that element’s characteristics in a way that assistive technology can understand. This is done via property declarations and their companion values.

ARIA states can change quickly or slowly, both as a result of human interaction as well as application state. When the state is changed as a result of human interaction, it is considered an “unmanaged state.” Here, a developer must supply the underlying JavaScript logic to control the interaction.

When the state changes as a result of the application (e.g., operating system, web browser, and so on), this is considered “managed state.” Here, the application automatically supplies the underlying logic.

How To Declare ARIA

Think of ARIA as an extension of HTML attributes, a suite of name/value pairs. Some values are predefined, while others are author-supplied:

For the examples in the previous graphic, the polite value for aria-live is one of the three predefined values (off, polite, and assertive). For aria-label, “Save” is a text string manually supplied by the author.

You declare ARIA on HTML elements the same way you declare other attributes:

<!-- Applies an id value of "carrot" to the div --> <div id="carrot"></div> <!-- Hides the content of this paragraph element from assistive technology --> <p aria-hidden="true"> Assistive technology can't read this </p> <!-- Provides an accessible name of "Stop", and also communicates that the button is currently pressed. A type property with a value of "button" prevents browser form submission. --> <button aria-label="Stop" aria-pressed="true" type="button"> <!-- SVG icon --> </button> 

Other usage notes:

• You can place more than one ARIA declaration on an HTML element.
• The order of placement of ARIA when declared on an HTML element does not matter.
• There is no limit to how many ARIA declarations can be placed on an element. Be aware that the more you add, the more complexity you introduce, and more complexity means a larger chance things may break or not function as expected.
• You can declare ARIA on an HTML element and also have other non-ARIA declarations, such as class or id. The order of declarations does not matter here, either.

It might also be helpful to know that boolean attributes are treated a little differently in ARIA when compared to HTML. Hidde de Vries writes about this in his post, “Boolean attributes in HTML and ARIA: what’s the difference?”.

Not A Whole Lot Of ARIA Is “Hardcoded”

In this context, “hardcoding” means directly writing a static attribute or value declaration into your component, view, or page.

A lot of ARIA is designed to be applied or conditionally modified dynamically based on application state or as a response to someone’s action. An example of this is a show-and-hide disclosure pattern:

• ARIA’s aria-expanded attribute is toggled from false to true to communicate if the disclosure is in an expanded or collapsed state.
• HTML’s hidden attribute is conditionally removed or added in tandem to show or hide the disclosure’s full content area.

<div class="disclosure-container"> <button aria-expanded="false" class="disclosure-toggle" type="button"> How we protect your personal information </button> <div hidden class="disclosure-content"> <ul> <li>Fast, accurate, thorough and non-stop protection from cyber attacks</li> <li>Patching practices that address vulnerabilities that attackers try to exploit</li> <li>Data loss prevention practices help to ensure data doesn't fall into the wrong hands</li> <li>Supply risk management practices help ensure our suppliers adhere to our expectations</li> </ul> <p> <a href="/security/">Learn more about our security best practices</a>. </p> </div> </div> 

A common example of a hardcoded ARIA declaration you’ll encounter on the web is making an SVG icon inside a button decorative:

<button type="button> <svg aria-hidden="true"> <!-- SVG code --> </svg> Save </button> 

Here, the string “Save” is what is required for someone to understand what the button will do when they activate it. The accompanying icon helps that understanding visually but is considered redundant and therefore decorative.

Declaring An Aria Role On Something That Already Uses That Role Implicitly Does Not Make It “Extra” Accessible

An implied role is all you need if you’re using semantic HTML. Explicitly declaring its role via ARIA does not confer any additional advantages.

<!-- You don't need to declare role="button" here. Using the <button> element will make assistive technology announce it as a button. The role="button" declaration is redundant. --> <button role="button"> Save </button> 

You might occasionally run into these redundant declarations on HTML sectioning elements, such as <main role="main">, or <footer role="contentinfo">. This isn’t needed anymore, and you can just use the <main> or <footer> elements.

The reason for this is historic. These declarations were done for support reasons, in that it was a stop-gap technique for assistive technology that needed to be updated to support these new-at-the-time HTML elements.

Contemporary assistive technology does not need these redundant declarations. Think of it the same way that we don’t have to use vendor prefixes for the CSS border-radius property anymore.

Note: There is an exception to this guidance. There are circumstances where certain complex and complicated markup patterns don’t work as expected for assistive technology. In these cases, we want to hardcode the implicit role as explicit ARIA to ensure it works. This assistive technology support concern is covered in more detail later in this post.

You Don’t Need To Say What A Control Is; That Is What Roles Are For

Both implicit and explicit roles are announced by screen readers. You don’t need to include that part for things like the interactive element’s text string or an aria-label.

<!-- Don't do this --> <button aria-label="Save button" type="button"> <!-- Icon SVG --> </button> <!-- Do this instead --> <button aria-label="Save" type="button"> <!-- Icon SVG --> </button> 

Had we used the string value of “Save button” for our Save button, a screen reader would announce it along the lines of, “Save button, button.” That’s redundant and confusing.

ARIA Roles Have Very Specific Meanings

We sometimes refer to website and web app navigation colloquially as menus, especially if it’s an e-commerce-style mega menu.

In ARIA, menus mean something very specific. Don’t think of global or in-page navigation or the like. Think of menus in this context as what appears when you click the Edit menu button on your application’s menubar.

Using a role improperly because its name seems like an appropriate fit at first glance creates confusion for people who do not have the context of the visual UI. Their expectations will be set with the announcement of the role, then subverted when it does not act the way it is supposed to.

Imagine if you click on a link, and instead of taking you to another webpage, it sends something completely unrelated to your printer instead. It’s sort of like that.

Declaring role="menu" is a common example of a misapplied role, but there are others. The best way to know what a role is used for? Go straight to the source and read up on it.

Certain Roles Are Forbidden From Having Accessible Names

These roles are caption, code, deletion, emphasis, generic, insertion, paragraph, presentation, strong, subscript, and superscript.

This means you can try and provide an accessible name for one of these elements — say via aria-label — but it won’t work because it’s disallowed by the rules of ARIA’s grammar.

<!-- This won't work--> <strong aria-label="A 35% discount!"> $39.95 </strong> <!-- Neither will this --> <code title="let JavaScript example"> let submitButton = document.querySelector('button[type="submit"]'); </code> 

For these examples, recall that the role is implicit, sourced from the declared HTML element.

Note here that sometimes a browser will make an attempt regardless and overwrite the author-specified string value. This overriding is a confusing act for all involved, which led to the rule being established in the first place.

You Can’t Make Up ARIA And Expect It To Work

I’ve witnessed some developers guess-adding CSS classes, such as .background-red or .text-white, to their markup and being rewarded if the design visually updates correctly.

The reason this works is that someone previously added those classes to the project. With ARIA, the people who add the content we can use are the Accessible Rich Internet Applications Working Group. This means each new version of ARIA has a predefined set of properties and values. Assistive technology is then updated to parse those attributes and values, although this isn’t always a guarantee.

Declaring ARIA, which isn’t part of that predefined set, means assistive technology won’t know what it is and consequently won’t announce it.

<!-- There is no "selectpanel" role in ARIA. Because of this, this code will be announced as a button and not as a select panel. --> <button role="selectpanel" type="button"> Choose resources </button> 

ARIA Fails Silently

This speaks to the previous section, where ARIA won’t understand words spoken to it that exist outside its limited vocabulary.

There are no console errors for malformed ARIA. There’s also no alert dialog, beeping sound, or flashing light for your operating system, browser, or assistive technology. This fact is yet another reason why it is so important to test with actual assistive technology.

You don’t have to be an expert here, either. There is a good chance your code needs updating if you set something to announce as a specific state and assistive technology in its default configuration does not announce that state.

ARIA Only Exposes The Presence Of Something To Assistive Technology

Applying ARIA to something does not automatically “unlock” capabilities. It only sends a hint to assistive technology about how the interactive content should behave.

For assistive technology like screen readers, that hint could be for how to announce something. For assistive technology like refreshable Braille displays, it could be for how it raises and lowers its pins. For example, declaring role="button" on a div element does not automatically make it clickable. You will still need to:

• Target the div element in JavaScript,
• Tie it to a click event,
• Author the interactive logic that it performs when clicked, and then
• Accommodate all the other expected behaviors.

This all makes me wonder why you can’t save yourself some work and use a button element in the first place, but that is a different story for a different day.

Additionally, adjusting an element’s role via ARIA does not modify the element’s native functionality. For example, you can declare role="image" on a div element. However, attempting to declare the alt or src attributes on the div won’t work. This is because alt and src are not supported attributes for div.

Declaring an ARIA Role On Something Will Override Its Semantics, But Not Its Behavior

This speaks to the previous section on ARIA only exposing something’s presence. Don’t forget that certain HTML elements have primary and secondary interactive capabilities built into them.

For example, an anchor element’s primary capability is navigating to whatever URL value is provided for its href attribute. Secondary capabilities for an anchor element include copying the URL value, opening it in a new tab or incognito window, and so on.

These secondary capabilities are still preserved. However, it may not be apparent to someone that they can use them — or use them in the way that they’d expect — depending on what is announced.

The opposite is also true. When an element has no capabilities, having its role adjusted does not grant it any new abilities. Remember, ARIA only announces. This is why that div with a role of button assigned to it won’t do anything when clicked if no companion JavaScript logic is also present.

You Will Need To Declare ARIA To Make Certain Interactions Accessible

A lot of the previous content may make it seem like ARIA is something you should avoid using altogether. This isn’t true. Know that this guidance is written to help steer you to situations where HTML does not offer the capability to describe an interaction out of the box. This space is where you want to use ARIA.

Knowing how to identify this area requires spending some time learning what HTML elements there are, as well as what they are and are not used for. I quite like HTML5 Doctor’s Element Index for upskilling on this.

Certain ARIA States Require Certain ARIA Roles To Be Present

This is analogous to how HTML has both global attributes and attributes that can only be used on a per-element basis. For example, aria-describedby can be used on any HTML element or role. However, aria-posinset can only be used with article, comment, listitem, menuitem, option, radio, row, and tab roles. Remember here that these roles can be provided by either HTML or ARIA.

Learning what states require which roles can be achieved by reading the official reference. Check for the “Used in Roles” portion of each entry’s characteristics:

Automated code scanners — like axe, WAVE, ARC Toolkit, Pa11y, equal-access, and so on — can catch this sort of thing if they are written in error. I’m a big fan of implementing these sorts of checks as part of a continuous integration strategy, as it makes it a code quality concern shared across the whole team.

ARIA Is More Than Web Browsers

Speaking of technology that listens, it is helpful to know that the ARIA you declare instructs the browser to speak to the operating system the browser is installed on. Assistive technology then listens to what the operating system reports. It then communicates that to the person using the computer, tablet, smartphone, and so on.

A person can then instruct assistive technology to request the operating system to take action on the web content displayed in the browser.

This interaction model is by design. It is done to make interaction from assistive technology indistinguishable from interaction performed without assistive technology.

There are a few reasons for this approach. The most important one is it helps preserve the privacy and autonomy of the people who rely on assistive technologies.

Just Because It Exists In The ARIA Spec Does Not Mean Assistive Technology Will Support It

This support issue was touched on earlier and is a difficult fact to come to terms with.

Contemporary developers enjoy the hard-fought, hard-won benefits of the web standards movement. This means you can declare HTML and know that it will work with every major browser out there. ARIA does not have this. Each assistive technology vendor has its own interpretation of the ARIA specification. Oftentimes, these interpretations are convergent. Sometimes, they’re not.

Assistive technology vendors also have support roadmaps for their products. Some assistive technology vendors:

• Will eventually add support,
• May never, and some
• Might do so in a way that contradicts how other vendors choose to implement things.

There is also the operating system layer to contend with, which I’ll cover in more detail in a little bit. Here, the mechanisms used to communicate with assistive technology are dusty, oft-neglected areas of software development.

With these layers comes a scenario where the assistive technology can support the ARIA declared, but the operating system itself cannot communicate the ARIA’s presence, or vice-versa. The reasons for this are varied but ultimately boil down to a historic lack of support, prioritization, and resources. However, I am optimistic that this is changing.

Additionally, there is no equivalent to Caniuse, Baseline, or Web Platform Status for assistive technology. The closest analog we have to support checking resources is a11ysupport.io, but know that it is the painstaking work of a single individual. Its content may not be up-to-date, as the work is both Herculean in its scale and Sisyphean in its scope. Because of this, I must re-stress the importance of manually testing with assistive technology to determine if the ARIA you use works as intended.

How To Determine ARIA Support

There are three main layers to determine if something is supported:

1. Operating system and version.
2. Assistive technology and version,
3. Browser and browser version.

1. Operating System And Version

Each operating system (e.g., Windows, macOS, Linux) has its own way of communicating what content is present to assistive technology. Each piece of assistive technology has to accommodate how to parse that communication.

Some assistive technology is incompatible with certain operating systems. An example of this is not being able to use VoiceOver with Windows, or JAWS with macOS. Furthermore, each version of each operating system has slight variations in what is reported and how. Sometimes, the operating system needs to be updated to “teach” it the updated AIRA vocabulary. Also, do not forget that things like bugs and regressions can occur.

2. Assistive Technology And Version

There is no “one true way” to make assistive technology. Each one is built to address different access needs and wants and is done so in an opinionated way — think how different web browsers have different features and UI.

Each piece of assistive technology that consumes web content has its own way of communicating this information, and this is by design. It works with what the operating system reports, filtered through things like heuristics and preferences.

Like operating systems, assistive technology also has different versions with what each version is capable of supporting. They can also be susceptible to bugs and regressions.

Another two factors worth pointing out here are upgrade hesitancy and lack of financial resources. Some people who rely on assistive technology are hesitant to upgrade it. This is based on a very understandable fear of breaking an important mechanism they use to interact with the world. This, in turn, translates to scenarios like holding off on updates until absolutely necessary, as well as disabling auto-updating functionality altogether.

Lack of financial resources is sometimes referred to as the disability or crip tax. Employment rates tend to be lower for disabled populations, and with that comes less money to spend on acquiring new technology and updating it. This concern can and does apply to operating systems, browsers, and assistive technology.

3. Browser And Browser Version

Some assistive technology works better with one browser compared to another. This is due to the underlying mechanics of how the browser reports its content to assistive technology. Using Firefox with NVDA is an example of this.

Additionally, the support for this reporting sometimes only gets added for newer versions. Unfortunately, it also means support can sometimes accidentally regress, and people don’t notice before releasing the browser update — again, this is due to a historic lack of resources and prioritization.

The Less Commonly-Used The ARIA You Declare, The Greater The Chance You’ll Need To Test It

Common ARIA declarations you’ll come across include, but are not limited to:

• aria-label,
• aria-labelledby,
• aria-describedby,
• aria-hidden,
• aria-live.

These are more common because they’re more supported. They are more supported because many of these declarations have been around for a while. Recall the previous section that discussed actual assistive technology support compared to what the ARIA specification supplies.

Newer, more esoteric ARIA, or historically deprioritized declarations, may not have that support yet or may never. An example of how complicated this can get is aria-controls.

aria-controls is a part of ARIA that has been around for a while. JAWS had support for aria-controls, but then removed it after user feedback. Meanwhile, every other screen reader I’m aware of never bothered to add support.

What does that mean for us? Determining support, or lack thereof, is best accomplished by manual testing with assistive technology.

The More ARIA You Add To Something, The Greater The Chance Something Will Behave Unexpectedly

This fact takes into consideration the complexities in preferences, different levels of support, bugs, regressions, and other concerns that come with ARIA’s usage.

Philosophically, it’s a lot like adding more interactive complexity to your website or web app via JavaScript. The larger the surface area your code covers, the bigger the chance something unintended happens.

Consider the amount of ARIA added to a component or discrete part of your experience. The more of it there is declared nested into the Document Object Model (DOM), the more it interacts with parent ARIA declarations. This is because assistive technology reads what the DOM exposes to help determine intent.

A lot of contemporary development efforts are isolated, feature-based work that focuses on one small portion of the overall experience. Because of this, they may not take this holistic nesting situation into account. This is another reason why — you guessed it — manual testing is so important.

Anecdotally, WebAIM’s annual Millions report — an accessibility evaluation of the top 1,000,000 websites — touches on this phenomenon:

Increased ARIA usage on pages was associated with higher detected errors. The more ARIA attributes that were present, the more detected accessibility errors could be expected. This does not necessarily mean that ARIA introduced these errors (these pages are more complex), but pages typically had significantly more errors when ARIA was present.

Assistive Technology May Support Your Invalid ARIA Declaration

There is a chance that ARIA, which is authored inaccurately, will actually function as intended with assistive technology. While I do not recommend betting on this fact to do your work, I do think it is worth mentioning when it comes to things like debugging.

This is due to the wide range of familiarity there is with people who author ARIA.

Some of the more mature assistive technology vendors try to accommodate the lower end of this familiarity. This is done in order to better enable the people who use their software to actually get what they need.

There isn’t an exhaustive list of what accommodations each piece of assistive technology has. Think of it like the forgiving nature of a browser’s HTML parser, where the ultimate goal is to render content for humans.

aria-label Is Tricky

aria-label is one of the most common ARIA declarations you’ll run across. It’s also one of the most misused.

aria-label can’t be applied to non-interactive HTML elements, but oftentimes is. It can’t always be translated and is oftentimes overlooked for localization efforts. Additionally, it can make things frustrating to operate for people who use voice control software, where the visible label differs from what the underlying code uses.

Another problem is when it overrides an interactive element’s pre-existing accessible name. For example:

<!-- Don't do this --> <a aria-label="Our services" href="/services/"> Services </a> 

This is a violation of WCAG Success Criterion 2.5.3: Label in Name, pure and simple. I have also seen it used as a way to provide a control hint. This is also a WCAG failure, in addition to being an antipattern:

<!-- Also don't do this --> <a aria-label="Click this link to learn more about our unique and valuable services" href="/services/"> Services </a> 

These factors — along with other considerations — are why I consider aria-label a code smell.

aria-live Is Even Trickier

Live region announcements are powered by aria-live and are an important part of communicating updates to an experience to people who use screen readers.

Believe me when I say that getting aria-live to work properly is tricky, even under the best of scenarios. I won’t belabor the specifics here. Instead, I’ll point you to “Why are my live regions not working?”, a fantastic and comprehensive article published by TetraLogical.

The ARIA Authoring Practices Guide Can Lead You Astray

Also referred to as the APG, the ARIA Authoring Practices Guide should be treated with a decent amount of caution.

The Downsides

The guide was originally authored to help demonstrate ARIA’s capabilities. As a result, its code examples near-exclusively, overwhelmingly, and disproportionately favor ARIA.

Unfortunately, the APG’s latest redesign also makes it far more approachable-looking than its surrounding W3C documentation. This is coupled with demonstrating UI patterns in a way that signals it’s a self-serve resource whose code can be used out of the box.

These factors create a scenario where people assume everything can be used as presented. This is not true.

Recall that just because ARIA is listed in the spec does not necessarily guarantee it is supported. Adrian Roselli writes about this in detail in his post, “No, APG’s Support Charts Are Not ‘Can I Use’ for ARIA”.

Also, remember the first rule of ARIA and know that an ARIA-first approach is counter to the specification’s core philosophy of use.

In my experience, this has led to developers assuming they can copy-paste code examples or reference how it’s structured in their own efforts, and everything will just work. This leads to mass frustration:

• Digital accessibility practitioners have to explain that “doing the right thing” isn’t going to work as intended.
• Developers then have to revisit their work to update it.
• Most importantly, people who rely on assistive technology risk not being able to use something.

This is to say nothing about things like timelines and resourcing, working relationships, reputation, and brand perception.

The Upside

The APG’s main strength is highlighting what keyboard keypresses people will expect to work on each pattern.

Consider the listbox pattern. It details keypresses you may expect (arrow keys, Space, and Enter), as well as less-common ones (typeahead selection and making multiple selections). Here, we need to remember that ARIA is based on the Windows XP era. The keyboard-based interaction the APG suggests is built from the muscle memory established from the UI patterns used on this operating system.

While your tree view component may look visually different from the one on your operating system, people will expect it to be keyboard operable in the same way. Honoring this expectation will go a long way to ensuring your experiences are not only accessible but also intuitive and efficient to use.

Another strength of the APG is giving standardized, centralized names to UI patterns. Is it a dropdown? A listbox? A combobox? A select menu? Something else?

When it comes to digital accessibility, these terms all have specific meanings, as well as expectations that come with them. Having a common vocabulary when discussing how an experience should work goes a long way to ensuring everyone will be on the same page when it comes time to make and maintain things.

macOS VoiceOver Can Also Lead You Astray

VoiceOver on macOS has been experiencing a lot of problems over the last few years. If I could wager a guess as to why this is, as an outsider, it is that Apple’s priorities are focused elsewhere.

The bulk of web development efforts are conducted on macOS. This means that well-intentioned developers will reach for VoiceOver, as it comes bundled with macOS and is therefore more convenient. However, macOS VoiceOver usage has a drastic minority share for desktops and laptops. It is under 10% of usage, with Windows-based JAWS and NVDA occupying a combined 78.2% majority share:

The Problem

The sad, sorry truth of the matter is that macOS VoiceOver, in its current state, has a lot of problems. It should only be used to confirm that it can operate the experience the way Windows-based screen readers can.

This means testing on Windows with NVDA or JAWS will create an experience that is far more accurate to what most people who use screen readers on a laptop or desktop will experience.

Dealing With The Problem

Because of this situation, I heavily encourage a workflow that involves:

1. Creating an experience’s underlying markup,
2. Testing it with NVDA or JAWS to set up baseline expectations,
3. Testing it with macOS VoiceOver to identify what doesn’t work as expected.

Most of the time, I find myself having to declare redundant ARIA on the semantic HTML I write in order to address missed expected announcements for macOS VoiceOver.

macOS VoiceOver testing is still important to do, as it is not the fault of the person who uses macOS VoiceOver to get what they need, and we should ensure they can still have access.

You can use apps like VirtualBox and Windows evaluation Virtual Machines to use Windows in your macOS development environment. Services like AssistivLabs also make on-demand, preconfigured testing easy.

What About iOS VoiceOver?

Despite sharing the same name, VoiceOver on iOS is a completely different animal. As software, it is separate from its desktop equivalent and also enjoys a whopping 70.6% usage share.

With this knowledge, know that it’s also important to test the ARIA you write on mobile to make sure it works as intended.

You Can Style ARIA

ARIA attributes can be targeted via CSS the way other HTML attributes can. Consider this HTML markup for the main navigation portion of a small e-commerce site:

<nav aria-label="Main"> <ul> <li> <a href="/home/">Home</a> <a href="/products/">Products</a> <a aria-current="true" href="/about-us/">About Us</a> <a href="/contact/">Contact</a> </li> </ul> </nav> 

The presence of aria-current="true" on the “About Us” link will tell assistive technology to announce that it is the current part of the site someone is on if they are navigating through the main site navigation.

We can also tie that indicator of being the current part of the site into something that is shown visually. Here’s how you can target the attribute in CSS:

nav[aria-label="Main"] [aria-current="true"] { border-bottom: 2px solid #ffffff; } 

This is an incredibly powerful way to tie application state to user-facing state. Combine it with modern CSS like :has() and view transitions and you have the ability to create robust, sophisticated UI with less reliance on JavaScript.

You Can Also Use ARIA When Writing UI Tests

Tests are great. They help guarantee that the code you work on will continue to do what you intended it to do.

A lot of web UI-based testing will use the presence of classes (e.g., .is-expanded) or data attributes (ex, data-expanded) to verify a UI’s existence, position and states. These types of selectors also have a far greater likelihood to be changed as time goes on when compared to semantic code and ARIA declarations.

This is something my coworker Cam McHenry touches on in his great post, “How I write accessible Playwright tests”. Consider this piece of Playwright code, which checks for the presence of a button that toggles open an edit menu:

// Selects an element with a role of `button` // that has an accessible name of "Edit" const editMenuButton = await page.getByRole('button', { name: "Edit" }); // Requires the edit button to have a property // of `aria-haspopup` with a value of `true` expect(editMenuButton).toHaveAttribute('aria-haspopup', 'true'); 

The test selects UI based on outcome rather than appearance. That’s a far more reliable way to target things in the long-term.

This all helps to create a virtuous feedback cycle. It enshrines semantic HTML and ARIA’s presence in your front-end UI code, which helps to guarantee accessible experiences don’t regress. Combining this with styling, you have a powerful, self-contained system for building robust, accessible experiences.

ARIA Is Ultimately About Caring About People

Web accessibility can be about enabling important things like scheduling medical appointments. It is also about fun things like chatting with your friends. It’s also used for every web experience that lives in between.

Using semantic HTML — supplemented with a judicious application of ARIA — helps you enable these experiences. To sum things up, ARIA:

• Has been around for a long time, and its spirit reflects the era in which it was first created;
• Has a governing taxonomy, vocabulary, and rules for use and is declared in the same way HTML attributes are;
• Is mostly used for dynamically updating things, controlled via JavaScript;
• Has highly specific use cases in mind for each of its roles;
• Fails silently if mis-authored;
• Only exposes the presence of something to assistive technology and does not confer interactivity;
• Requires input from the web browser, but also the operating system, in order for assistive technology to use it;
• Has a range of actual support, complicated by the more of it you use;
• Has some things to watch out for, namely aria-label, the ARIA Authoring Practices Guide, and macOS VoiceOver support;
• Can also be used for things like visual styling and writing resilient tests;
• Is best evaluated by using actual assistive technology.

Viewed one way, ARIA is arcane, full of misconceptions, and fraught with potential missteps. Viewed another, ARIA is a beautiful and elegant way to programmatically communicate the interactivity and state of a user interface.

I choose the second view. At the end of the day, using ARIA helps to ensure that disabled people can use a web experience the same way everyone else can.

Thank you to Adrian Roselli and Jan Maarten for their feedback.

Further Reading

• “What the Heck is ARIA? A Beginner’s Guide to ARIA for Accessibility,” Kat Shaw
• “Accessibility APIs: A Key To Web Accessibility,” Léonie Watson & Chaals McCathie Nevile
• “Semantics to Screen Readers,” Melanie Richards
• “What ARIA does not do,” Steve Faulkner
• “What ARIA still does not do,” stevef
• “APG support tables — why they matter,” Michael Fairchild
• “ARIA vs HTML,” Adrian Roselli

(gg, yk)