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StyleSheet.media - Web API | MDN
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このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。
StyleSheet.media
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
media は StyleSheet インターフェイスのプロパティで、スタイル情報の対象となる出力先メディアを指定します。これは読み取り専用の配列風の MediaList オブジェクトで、 deleteMedium() で削除し、 appendMedium() で追加することが可能です。
値
読み取り専用、配列風の MediaList オブジェクトです。
例
html
<!doctype html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<title>Test page</title>
<link rel="stylesheet" href="document.css" media="screen" />
<style rel="stylesheet" media="screen, print">
body {
background-color: snow;
}
</style>
</head>
<body>
<script>
for (let i = 0; i < document.styleSheets.length; i++) {
console.log(
`document.styleSheets[${i}].media: ${JSON.stringify(
document.styleSheets[i].media,
)}`,
);
if (iSheetIndex === 0)
document.styleSheets[i].media.appendMedium("handheld");
if (iSheetIndex === 1)
document.styleSheets[i].media.deleteMedium("print");
console.log(
`document.styleSheets[${i}].media: ${JSON.stringify(
document.styleSheets[i].media,
)}`,
);
}
// This 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>
仕様書
| Specification |
|---|
| CSS Object Model (CSSOM) # dom-stylesheet-media |
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