.sldj{display: inline-block;position: absolute;right: 10px;top: 0;width: 27px;height: 35px;line-height: 35px;text-align: center;color: #fff;}
.sldj-1{background: url(../images/1@2x.png)no-repeat center center;background-size: 100%;}
.sldj-2{background: url(../images/2@2x.png)no-repeat center center;background-size: 100%;}
.sldj-3{background: url(../images/3@2x.png)no-repeat center center;background-size: 100%;}
.sldj-4{background: url(../images/4@2x.png)no-repeat center center;background-size: 100%;}