Accessibility First

Build websites everyone can use.

Accessibility is not a feature for a few people. It is a quality standard for all users: keyboard users, screen reader users, people with low vision, people using captions, and anyone on a slow connection or small screen.

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Core Ideas

Use the POUR framework

WCAG guidance is often summarized into four principles. If your content is not perceivable, operable, understandable, and robust, many users will be blocked.

Perceivable

Users must be able to perceive content in multiple ways. Use text alternatives, sufficient contrast, captions, and clear structure.

Operable

All functionality should work with a keyboard. Avoid traps, make focus visible, and allow enough time to complete tasks.

Understandable

Write clear labels, predictable interactions, and helpful error messages. Do not rely on color alone to communicate meaning.

Robust

Use valid, semantic HTML so browsers and assistive technologies can interpret your interface reliably across devices.

Manual Testing

2-minute accessibility checklist

Use this quick pass before shipping. Automated tools help, but they do not replace keyboard and screen reader testing.

Check items as you verify them. Progress is stored in your browser only.

Quick checks I can tab through all interactive elements in a logical order. Keyboard focus is always visible and not hidden by styles. Buttons, links, and form fields have clear names/labels. Text and UI controls have readable color contrast. Headings describe sections in a meaningful hierarchy. Animations are optional or reduced when requested.

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Keep Learning

Trusted accessibility resources

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W3C Web Accessibility Initiative (WAI)
Authoritative guidance on standards, WCAG, tutorials, and planning.
WebAIM
Practical articles, contrast checker tools, and training materials.
The A11Y Project
Community-driven checklists, articles, and testing guidance.
MDN Accessibility
Developer-focused reference material and implementation examples.