案例：javascript案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html>
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<head>
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<style type="text/css">
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img
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{
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position:absolute;
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top:100px;
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}
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</style>
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<script type="text/javascript">
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function clipImage()
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{
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document.getElementById("img1").style.clip="rect(0px,50px,50px,0px)";
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}
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</script>
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</head>
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<body>
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​
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<img id="img1" border="0" src="/img/eg_sun.gif" />
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​
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<input type="button" onclick=clipImage() value="Clip image" />
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​
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</body>
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</html>
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​