.selected-item{background-color:#daecffe6;border-left:3px solid var(--el-color-primary);position:relative}.selected-item:after{border-bottom:8px solid transparent;border-right:8px solid #fff;border-top:8px solid transparent;content:"";height:0;position:absolute;right:0;top:50%;transform:translateY(-50%);width:0}.function-item .icon{height:100%;width:100%}