:focus-within
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
The :focus-within CSS pseudo-class matches an element if the element or any of its descendants are focused. In other words, it represents an element that is itself matched by the :focus pseudo-class or has a descendant that is matched by :focus. (This includes descendants in shadow trees.)
Try it
label { display: block; margin-top: 1em; } label:focus-within { font-weight: bold; } <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> This selector is useful, to take a common example, for highlighting an entire <form> container when the user focuses on one of its <input> fields.
Syntax
css
:focus-within { /* ... */ } Examples
In this example, the form will receive special coloring styles when either text input receives focus.
HTML
html
<p>Try typing into this form.</p> <form> <label for="given_name">Given Name:</label> <input id="given_name" type="text" /> <br /> <label for="family_name">Family Name:</label> <input id="family_name" type="text" /> </form> CSS
css
form { border: 1px solid; color: gray; padding: 4px; } form:focus-within { background: #ffff88; color: black; } input { margin: 4px; } Result
Specifications
| Specification |
|---|
| Selectors Level 4 # the-focus-within-pseudo |
Browser compatibility
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