CSS @media width Property

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CSS @media width

CSS @media width can be used to test the width of the viewport.

Example

HTML Online Editor
<!DOCTYPE html> <html lang="en-US"> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> @media (width: 360px) { h1{ color: red; } } @media (min-width: 360px) { h1 { color: green; } } @media (max-width: 360px) { h1 { color: blue; } } </style> </head> <body> <h1>CSS @media width</h1> <p>Resize your browser width to see the changes.</p> </body> </html>

Syntax

Using CSS

@media (width: 360px) { element{ color: red; } }

Using Javascript

elementelegram.dogdia = "(width: 360px)";

Media Query Value

The following table provides the list of media query value for width.

ValueExplanation
lengthAllows you to define the width of the @media in any CSS length unit.

Using JavaScript

In the following example, we will demonstrate how to set the CSS @media width media feature by using javascript.

Example

HTML Online Editor
<!DOCTYPE html> <html lang="en-US"> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <h1>CSS @media width</h1> <button onclick="myFunction()">Click Me</button> <script> function myFunction(){ var styles = 'h1{color:blue;}'; var styleSheet = document.createElement("style"); styleSheet.type = "text/css"; styleSheet.media = "(width: 360px)"; styleSheet.innerText = styles; document.head.appendChild(styleSheet); } </script> </body> </html>

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