accessingstylesheetsexample.htm

来自「这是javascript高级程序设计的源码」· HTM 代码 · 共 26 行

HTM
26
字号
<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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