CSS外框阴影效果

CSS外框阴影效果内容简介：style .s1{ border:2px solid #f7f7f7;width:200px;} .s2{ width:200px; height:300px; border:1px solid #ddd;} /style div class=s1 div class=s2 CSS外框阴影 /div /div <style>
.s1{ border:2px solid #f7f7f7;width:200px;}
.s2{ width:200px; height:300px; border:1px solid #ddd;}
</style>
<div class="s1">
<div class="s2">
CSS外框阴影
</div>
</div>