vant-weapp/dist/tree-select/index.wxss

.van-ellipsis{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.van-multi-ellipsis--l2{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.van-multi-ellipsis--l3{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}.van-clearfix::after{content:'';display:table;clear:both}.van-hairline,.van-hairline--bottom,.van-hairline--left,.van-hairline--right,.van-hairline--surround,.van-hairline--top,.van-hairline--top-bottom{position:relative}.van-hairline--bottom::after,.van-hairline--left::after,.van-hairline--right::after,.van-hairline--surround::after,.van-hairline--top-bottom::after,.van-hairline--top::after,.van-hairline::after{content:'';position:absolute;top:0;left:0;width:200%;height:200%;-webkit-transform:scale(.5);transform:scale(.5);-webkit-transform-origin:0 0;transform-origin:0 0;pointer-events:none;box-sizing:border-box;border:0 solid #e5e5e5}.van-hairline--top::after{border-top-width:1px}.van-hairline--left::after{border-left-width:1px}.van-hairline--right::after{border-right-width:1px}.van-hairline--bottom::after{border-bottom-width:1px}.van-hairline--top-bottom::after{border-width:1px 0}.van-hairline--surround::after{border-width:1px}.tree-select{-webkit-user-select:none;user-select:none;position:relative;font-size:16px}.tree-select__nav{width:143px;position:absolute;left:0;top:0;bottom:0;overflow:scroll;background-color:#fff;-webkit-overflow-scrolling:touch}.tree-select__nitem{line-height:44px;padding:0 15px;background-color:#fff}.tree-select__nitem--active{background-color:#f8f8f8}.tree-select__content{padding:0 15px;margin-left:143px;overflow:scroll;-webkit-overflow-scrolling:touch}.tree-select__item{position:relative;line-height:44px;padding-left:5px;padding-right:18px}.tree-select__item--active{color:#f44}.tree-select__selected{float:right;position:absolute;right:0;top:0;bottom:0;line-height:inherit}