The width
CSS media feature can be used to test the width of the viewport (or the page box, for paged media).
Syntax
The width
feature is specified as a <length>
value representing the viewport width. It is a range feature, meaning that you can also use the prefixed min-width
and max-width
variants to query minimum and maximum values, respectively.
Examples
HTML
<div>Watch this element as you resize your viewport's width.</div>
CSS
/* Exact width */ @media (width: 360px) { div { color: red; } } /* Minimum width */ @media (min-width: 35rem) { div { background: yellow; } } /* Maximum width */ @media (max-width: 50rem) { div { border: 2px solid blue; } }
Result
Specifications
Specification | Status | Comment |
---|---|---|
Media Queries Level 4 The definition of 'width' in that specification. |
Candidate Recommendation | The value can now be negative, in which case it computes to false. |
Media Queries The definition of 'width' in that specification. |
Recommendation | Initial definition. The value must be nonnegative. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
width media feature | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 2 | IE Full support 9 | Opera Full support 10 | Safari Full support 3 | WebView Android Full support ≤37 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support 10.1 | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support