24_css定位布局_相对定位.html
2015-06-01 16:37
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>css定位布局_相对定位</title><style type="text/css">#body,div{margin:0;padding:0;}#main{width:500px;height:500px;border:1px solid black;margin:0 auto;}#one,#two,#three{width:100px;height:100px;background:red;}#two{background:green;position:relative;top:100px;left:100px;}#three{background:blue;position:relative;top:-100px;left:100px;}</style></head><body><div id="main"><div id="one">1</div><div id="two">2</div><div id="three">3</div></div></body></html>
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