直接上DEMO了
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><style type="text/CSS"><!-- .d1 { position:absolute; top:20px; left:20px; width:200px; height:200px; background:red }.d2 { width:500px; height:100px; background:blue; }--></style><div class="d1"></div><div class="d2"></div>
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疑难解答
