This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The read-only sheet property of the HTMLStyleElement interface contains the stylesheet associated with that element.
An StyleSheet is always associated with a HTMLStyleElement, unless its type attribute is not text/css.
A StyleSheet object, or null if none is associated with the element.
Suppose the <head> contains the following:
<style id="inline-style">
p {
color: blue;
}
</style>
The sheet property of the associated HTMLStyleElement object will return the StyleSheet object describing it.
const style = document.getElementById("inline-style");
console.log(style.sheet.cssRules[0].cssText); // 'p { color: blue; }'
| Specification |
|---|
| CSS Object Model (CSSOM)> # dom-linkstyle-sheet> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
sheet |
1 | 12 | 1 | ≤12.1 | 1 | 18 | 4 | ≤12.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLStyleElement/sheet