📄 accessingstylesheetsexample.htm
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<html>
<head>
<title>Accessing Style Sheets Example</title>
<style type="text/css">
div.special {
background-color: red;
height: 10px;
width: 10px;
margin: 10px;
}
</style>
<script type="text/javascript">
function getBackgroundColor() {
var oDiv = document.getElementById("div1");
alert(oDiv.style.backgroundColor);
}
</script>
</head>
<body>
<div id="div1" class="special"></div>
<input type="button" value="Get Background Color" onclick="getBackgroundColor()" />
<p>The alert displays nothing because the background color of the <code>div</code> is assigned by a class, not by the <code>style</code> attribute.</p>
</body>
</html>
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