The :focus-visible pseudo-class applies while an element matches the :focus pseudo-class and the UA determines via heuristics that the focus should be made evident on the element. (Many browsers show a “focus ring” by default in this case.)
This selector is useful to provide a different focus indicator based on the user’s input modality (mouse vs. keyboard).
Note that Firefox supports similar functionality through an older, prefixed pseudo-class — :-moz-focusring. See the :-moz-focusring page for more details.
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In this example, the :focus-visible selector uses the UA's behavior to determine when to match. Compare what happens when you click on the different controls with a mouse, versus when you tab through them using a keyboard. Note the difference in behavior from elements styled with :focus.
<input value="Default styles"><br> <button>Default styles</button><br> <input class="focus-only" value=":focus only"><br> <button class="focus-only">:focus only</button><br> <input class="focus-visible-only" value=":focus-visible only"><br> <button class="focus-visible-only">:focus-visible only</button>
input, button {
margin: 10px;
}
.focus-only:focus {
outline: 2px solid black;
}
.focus-visible-only:focus-visible {
outline: 4px dashed darkorange;
}
A custom control, such as a custom element button, can use :focus-visible to selectively apply a focus indicator only on keyboard-focus. This matches the native focus behavior for controls like <button>.
<custom-button tabindex="0" role="button">Click Me</custom-button>
custom-button {
display: inline-block;
margin: 10px;
}
custom-button:focus {
/* Provide a fallback style for browsers
that don't support :focus-visible */
outline: none;
background: lightgrey;
}
custom-button:focus:not(:focus-visible) {
/* Remove the focus indicator on mouse-focus for browsers
that do support :focus-visible */
background: transparent;
}
custom-button:focus-visible {
/* Draw a very noticeable focus style for
keyboard-focus on browsers that do support
:focus-visible */
outline: 4px dashed darkorange;
background: transparent;
} You can polyfill :focus-visible using focus-visible.js.
Make sure the visual focus indicator can be seen by people with low vision. This will also benefit anyone use a screen in a brightly lit space (like outside in the sun). WCAG 2.1 SC 1.4.11 Non-Text Contrast requires that the visual focus indicator be at least 3 to 1.
Accessible Visual Focus Indicators: Give Your Site Some Focus! Tips for Designing Useful and Usable Focus Indicators
| Specification | Status | Comment |
|---|---|---|
| Selectors Level 4 The definition of ':focus-visible' in that specification. | Working Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 67
|
No | No | No | No | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | No | 67
|
No | No | No | No | No |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible