图片的阴影效果（原理与文字阴影是一样的）：
本例代码：
<DIV style="FILTER: Dropshadow(color=#cccccc,offX=4,offY=4); OVERFLOW: visible; WIDTH: 415px; HEIGHT: 315px">
<DIV style="BORDER-RIGHT: #999 1px solid; BORDER-TOP: #999 1px solid; BACKGROUND: white; FLOAT: left; OVERFLOW: visible; BORDER-LEFT: #999 1px solid; WIDTH: 10px; LINE-HEIGHT: 4px; BORDER-BOTTOM: #999 1px solid; LETTER-SPACING: 4px; HEIGHT: 10px">
<DIV style="BORDER-RIGHT: #ffffff 4px solid; BORDER-TOP: #ffffff 4px solid; BACKGROUND: white; OVERFLOW: visible; BORDER-LEFT: #ffffff 4px solid; WIDTH: 10px; LINE-HEIGHT: 4px; BORDER-BOTTOM: #ffffff 4px solid; LETTER-SPACING: 4px; HEIGHT: 10px"><IMG height=300 src="/upimg/allimg/20061015/1358110.jpg" width=400></DIV></DIV></DIV>