[e-id].uiset { /*border: 1px solid #f00 !important;*/ cursor: pointer; position: relative; } [e-id].uiset b.ui_icon{ background: url(../images/ui_icon.jpg) no-repeat #000; height: 22px; width: 35px; display: inline-block; position: absolute; top: 0px; left: 50%; margin-left: -17px; z-index: 999999; } [e-id].uiset div.ui_zhezhaoceng{ position: absolute; z-index: 0; width: 100%; height: 100%; display: block; background-color: rgba(0, 0, 0, 0.3); cursor: default; } [e-id].uiset_back-btn { position: fixed; top: 0; right: 0; width: 40px; height: 40px; background: url(../images/uiset_back-btn.png) no-repeat transparent; z-index: 9999; cursor: pointer; }