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1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>无标题文档</title> 6 <style type="text/css"> 7 *{ 8 margin:0px; 9 padding:0px;} 10 .a 11 { 12 width:200px; 13 height:400px; 14 border:1px double red;} 15 </style> 16 </head> 17 18 <body> 19 <div class="a" style="float:left;">1</div> 20 <div class="a" style="float:right;">2</div> 21 <div class="a" style="float:left;">3</div> 22 <div class="a" style="float:right;">4</div> 23 <div class="a" style="float:left;">5</div> 24 <div class="a" style="float:right;">6</div> 25 <div class="a" style="float:left;">7</div> 26 <div class="a" style="float:right;">8</div> 27 28 </body> 29 </html>
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原文地址：http://www.cnblogs.com/tonyhere/p/5517697.html
