1 <html>
2<head>
3  <style>
4  #center{}{ background:red; color:#FFFFFF; font-size:12px; line-height:20px; position:absolute;left:expression((body.clientWidth-50)/2);top:expression((body.clientHeight-50)/2);width:80;height:20; text-align:center; display:none}
5</style>
6</head>
7<body>
8<div id="center">正在加載</div>
9</body>
10</html>
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