css背景图定位(同一背景图定位两边)

.blk_18 .LeftBotton, .blk_18 .RightBotton { width:15px; height:74px; float:left; background:url(__PUBLIC__/images/ax.gif) no-repeat; }
.blk_18 .LeftBotton { background-position: 0 0; margin:66px 5px 0; }
.blk_18 .RightBotton { background-position: 0 -100px; margin:66px 1px 10px 5px; }