.van-tree-select{-webkit-user-select:none;user-select:none;position:relative}.van-tree-select__nav{width:143px;position:absolute;left:0;top:0;bottom:0;overflow:scroll;background-color:#fff;-webkit-overflow-scrolling:touch}.van-tree-select__nitem{line-height:44px;padding:0 15px;background-color:#fff}.van-tree-select__nitem--active{background-color:#f8f8f8}.van-tree-select__content{padding:0 15px;margin-left:143px;overflow:scroll;-webkit-overflow-scrolling:touch}.van-tree-select__item{position:relative;line-height:44px;padding-left:5px;padding-right:18px}.van-tree-select__item--active{color:#f44}.van-tree-select__selected{float:right;position:absolute;right:0;top:0;bottom:0;line-height:inherit}