案例：HTML DOM案例     状态：可编辑再运行    进入竖版
 运行结果　
​x
 
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<html>
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<head>
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​
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<script type="text/javascript">
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var i=1
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function starttimer()
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{
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document.getElementById('h_one').style.position="relative"
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document.getElementById('h_one').style.left=+i
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document.getElementById('h_two').style.position="relative"
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document.getElementById('h_two').style.top=+i
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i++
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timer=setTimeout("starttimer()",10)
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}
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​
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function stoptimer()
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{
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clearTimeout(timer)
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}
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</script>
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​
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</head>
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<body onload="starttimer()" onunload="stoptimer()">
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​
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<h1 id="h_one">标题一</h1>
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<h1 id="h_two">标题二</h1>
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​
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</body>
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</html>
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​