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Accessibility quiz

Test your Accessibility knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

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Why is `outline: none` on focusable elements harmful?

 In this round

Why is `outline: none` on focusable elements harmful?
What does WCAG AA require for the contrast ratio of normal-sized body text?
Which property tells password managers and screen readers what a field is for?
A button has a 16x16 icon and no visible text. How do you give it an accessible name?
What does `tabindex="0"` do that `tabindex="-1"` does not?
Why pair `<label>` with `<fieldset>` and `<legend>` for related radio buttons?
A button shows "Save" while idle and a spinner while saving. Best disabled-state choice?
A red asterisk marks required fields. What does that miss for screen-reader users?
A `<div>` is meant to act as a clickable card. What is the minimum needed for keyboard users?
Which is the correct way to display dynamic notifications ("Saved!", "Error!") to screen readers?
Why should the document language be set on `<html lang="…">`?
Which element is the correct landmark for a primary navigation bar?

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