Method to obtain the background color through id: First use the "document.getElementById('id value')" statement to obtain the specified element object; then use "element object.style.background" to return the background color value.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
htmlGet the background color through id
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script>
function displayResult(){
var s=document.getElementById('h1').style.background;
document.getElementById('div').innerHTML="h1标签的背景色为"+s;
}
</script>
</head>
<body>
<h1 id="h1" style="background: red;">Hello World!</h1>
<div id="div"></div>
<br>
<button type="button" onclick="displayResult()">获取背景色</button>
</body>
</html>Rendering:
Description:
## The #getElementById() method returns a reference to the first object with the specified ID.Object.style.background="color image repeat attachment position"
Object.style.background
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