直接上DEMO了
<span><span>DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"</span><span>></span><span><span>meta </span><span>http-equiv</span><span>="Content-Type"</span><span> content</span><span>="text/html; charset=gb2312"</span><span>/></span><span><span>style </span><span>type</span><span>="text/css"</span><span>></span><span><!--
.d1 </span><span>{</span><span> position</span><span>:</span><span>absolute</span><span>;</span><span> top</span><span>:</span><span>20px</span><span>;</span><span> left</span><span>:</span><span>20px</span><span>;</span><span> width</span><span>:</span><span>200px</span><span>;</span><span> height</span><span>:</span><span>200px</span><span>;</span><span> background</span><span>:</span><span>red
</span><span>}</span><span>.d2 </span><span>{</span><span> width</span><span>:</span><span>500px</span><span>;</span><span> height</span><span>:</span><span>100px</span><span>;</span><span> background</span><span>:</span><span>blue</span><span>;</span><span>}</span><span>
-->
</span><span></span><span>style</span><span>></span><span><span>div </span><span>class</span><span>="d1"</span><span>></span><span>div</span><span>></span><span><span>div </span><span>class</span><span>="d2"</span><span>></span><span>div</span><span>></span></span></span></span></span></span>以上就介绍了如何让一个DIV浮动在另一个DIV上面，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
