The read-only property returns an integer that represents the number of style declarations in this CSS declaration block.
CSSStyleDeclaration.length
Value
An integer that provides the number of styles explicitly set on the parent of the instance.
Examples
The following gets the number of explicitly set styles on the following HTML element:
<div id="div1" style="margin: 0 10px; background-color: #CA1; font-family: monospace"></div>
JavaScript code:
var myDiv = document.getElementById('div1'); var divStyle = myDiv.style; var len = divStyle.length; // 6
Specifications
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
length |
44
|
12
|
1
|
9
|
≤12.1
|
6
|
4.4
|
18
|
4
|
≤12.1
|
6
|
1.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration/length
