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<script type="text/javascript">
$(function(){
$(‘#divLocker‘).css({
"position": "absolute",
"margin-left": 0,
"margin-top": 0,
"background": "rgba(0, 0, 0, 0.8)",
"height": function(){ return $(document).height();},
"width": function(){ return $(document).width();},
"overflow": "hidden",
"z-index": "999"
});
});
</script>
<body>
<div id="divLocker" style="display: none;">我是内容</div>
内容部分需要屏幕居中显示
<div id="payInterface" style="margin: auto; position: absolute; left: 0; right: 0; top: 0; bottom: 0; text-align: center; width:<?=$w?>px; height: <?=round($w*0.9*357/420, 2)?>px;"><img src="http://www.cnblogs.com/images/pay.png" width="90%" /></div>
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原文地址：http://www.cnblogs.com/doseoer/p/4581360.html
