.sidebars{position: fixed;top: 34%;right: 60px;width: 60px;height: auto; z-index:9999}
.sidebars li{border: 1px solid #dcdcdc;background: #f2f2f2;width: 58px;height:28px;margin-bottom: 10px;padding-top: 32px;cursor: pointer;position: relative;}
.sidebars li span{display: block;width: 100%;height: 26px;line-height: 26px;text-align: center;color: #333333;font-size: 13px;}
.sidebars li.zwwxi{background: url(../images/sidebar1-2020.png) no-repeat center 8px  #f2f2f2;}
.sidebars li.zwwbi{background: url(../images/sidebar2-2020.png) no-repeat center 8px  #f2f2f2;}
.sidebars li.appi{background: url(../images/sidebar3-2020.png) no-repeat center 5px  #f2f2f2;}
.sidebars li.znwdi{background: url(../images/sidebar4-2020.png) no-repeat center 5px  #f2f2f2;}
.sidebars li.backtop{background: url(../images/sidebar5-2020.png) no-repeat center  #f2f2f2;display: none}
.sidebars li .coverimg{width: 140px;height: 140px;padding: 10px;background: white;position: absolute;right: 60px;top: 0px;display: none;}
.sidebars li .coverimg img{display: block;width: 100%;height: 100%;}
.sidebars li:hover .coverimg{display: block;}