StyleSheet.media

The media property of the StyleSheet interface 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 compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
mediaChrome Full support 1Edge Full support 12Firefox Full support YesIE ? Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown