全屏绝对定位代码：

<DIV class=divBorderStyle style="LEFT: 0px; OVERFLOW: hidden; WIDTH: 1500px; BORDER-TOP-STYLE: none; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; POSITION: absolute; TOP: 0px; HEIGHT: 2255px; BORDER-BOTTOM-STYLE: none"><IMG src="http://image50.360doc.com/DownloadImg/2012/03/2009/22453275_13.jpg"></DIV>

请看效果