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StyleSheet.media

StyleSheet.media specifies the intended destination media for style information. It is a read-only array-like MediaList object and can be removed with deleteMedium() and added with appendMedium().

Example

<!doctype html>
<html>
<head>
<link rel="stylesheet" href="document.css" type="text/css" media="screen" />
<style rel="stylesheet" type="text/css" media="screen, print">
body  { background-color: snow; }
</style>
</head>
<body>

<script>
for (var iSheetIndex = 0; iSheetIndex < document.styleSheets.length; iSheetIndex++)
 {
  console.log('document.styleSheets[' + String(iSheetIndex) + '].media: ' +
   JSON.stringify(document.styleSheets[iSheetIndex].media));
  if (iSheetIndex === 0)
    document.styleSheets[iSheetIndex].media.appendMedium('handheld');
  if (iSheetIndex === 1)
    document.styleSheets[iSheetIndex].media.deleteMedium('print');
  console.log('document.styleSheets[' + String(iSheetIndex) + '].media: ' +
   JSON.stringify(document.styleSheets[iSheetIndex].media));
 }
/*
will log:
document.styleSheets[0].media: {"0":"screen"}
document.styleSheets[0].media: {"0":"screen","1":"handheld"}
document.styleSheets[1].media: {"0":"screen","1":"print"}
document.styleSheets[1].media: {"0":"screen"}
*/
</script>

</body>
</html>

Specification

DOM Level 2 Styles - STYLESHEET

W3C: Document Object Model Style Sheets - MediaList

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	1	?	Yes	?	Yes	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	Yes	Yes	?	Yes	Yes	?	?

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/StyleSheet/media