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<style type="text/css">
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position:absolute;
width:399px;
height:195px;
z-index:1;
border:1px solid #000;
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<style type="text/css">
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position:absolute;
width:399px;
height:195px;
z-index:1;
border:1px solid #000;
background-color:#CCCCCC;
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<script>
window.onload = function(){
alert(document.getElementById('apDiv1').currentStyle.width)
}
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<BODY>
<div id="apDiv1">aaa</div>
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