兼容性代码收集——（易达客）

跨浏览器实现投影(box-shadow)：

 1 /* hack for ie */
 2 background: #fff;
 3
 4 /* sane web browsers */
 5 -moz-box-shadow:1px 3px 12px #bbb;
 6 -webkit-box-shadow:1px 3px 12px #bbb;
 7 box-shadow:1px 3px 12px #bbb;
 8
 9 /* gte ie8 */
10 -ms-filter:"progid:DXImageTransform.Microsoft.Shadow(color=#eeeeee,direction=0,strength=6) progid:DXImageTransform.Microsoft.Shadow(color=#dddddd,direction=90,strength=10) progid:DXImageTransform.Microsoft.Shadow(color=#dddddd,direction=180,strength=10) progid:DXImageTransform.Microsoft.Shadow(color=#eeeeee,direction=270,strength=6)";
11
12 /* lte ie7 */
13 *filter:
14 progid:DXImageTransform.Microsoft.Shadow(color=#eeeeee,direction=0,strength=6)
15 progid:DXImageTransform.Microsoft.Shadow(color=#dddddd,direction=90,strength=10)
16 progid:DXImageTransform.Microsoft.Shadow(color=#dddddd,direction=180,strength=10)
17 progid:DXImageTransform.Microsoft.Shadow(color=#eeeeee,direction=270,strength=6);