This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The :focus CSS pseudo-class represents an element (such as a form input) that has received focus. It is generally triggered when the user clicks or taps on an element or selects it with the keyboard's Tab key.
label {
display: block;
margin-top: 1em;
}
input:focus {
background-color: lightblue;
}
select:focus {
background-color: ivory;
}
<form>
<p>Which flavor would you like to order?</p>
<label>Full Name: <input name="firstName" type="text" /></label>
<label
>Flavor:
<select name="flavor">
<option>Cherry</option>
<option>Green Tea</option>
<option>Moose Tracks</option>
<option>Mint Chip</option>
</select>
</label>
</form>
Note: This pseudo-class applies only to the focused element itself. Use :focus-within if you want to select an element that contains a focused element.
:focus {
/* ... */
}
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.
:focus { outline: none; }Never just remove the focus outline (visible focus indicator) without replacing it with a focus outline that will pass WCAG 2.1 SC 1.4.11 Non-Text Contrast.
<div><input class="red-input" value="I'll be red when focused." /></div> <div><input class="blue-input" value="I'll be blue when focused." /></div>
.red-input:focus {
background: yellow;
color: red;
}
.blue-input:focus {
background: yellow;
color: blue;
}
| Specification |
|---|
| HTML> # selector-focus> |
| Selectors Level 4> # focus-pseudo> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
:focus |
1 | 12 | 1 | 7 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/CSS/:focus