CSS 边框阴影
<!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><title>CSS边框阴影</title><style>.dropshadow2{float:left;clear:left;background: url(/jscss/demoimg/200903/shadowAlpha.png) no-repeat bottom right !important;background: url(/jscss/demoimg/200903/shadow.gif) no-repeat bottom right;margin: 10px 0 10px 10px !important;margin: 10px 0 10px 5px;width: 360px;padding: 0px;}.innerbox{position:relative;bottom:6px;right: 6px;border: 1px solid #999999;padding:4px;margin: 0px 0px 0px 0px;}.innerbox{/* IE5 hack */margin: 0px 0px -3px 0px;margin: 0px 0px 0px 0px;}.innerbox p{font-size:14px;margin: 3px;}</style></head><body><div class="dropshadow2"><div class="innerbox"><h4>CSS阴影：</h4> <p>这段边框阴影效果怎么样呢？</p></div></div></body></html>?