一、box-shadow: 0 2px 15px 0 rgba(0,0,0,.15)!important
二、
box-shadow: 0 2px 6px 0 rgba(0,0,0,.4);
三、
.tofu-block-hover {
???transition: opacity 0.3s,width 4s,height 4s;
???border: 1px solid #e7e7e7;
???padding: 18px;
???background-color: #fff;
???position: absolute;
???border: 1px solid #00c1e0;
???width: 120%;
???height: 120%;
???margin-top: -8%;
???margin-left: -8%;
???box-shadow: 0 0 8px #00c1e0;
???z-index: 2;
???/* opacity: 0; */
???filter: alpha(opacity=0);
???-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(0));
}
css常用的阴影
原文地址：http://www.cnblogs.com/zhujiasheng/p/7819961.html