穿梭框样式(高度和下拉框匹配)

src/components/app-transfer/app-transfer.less

@@ -5,6 +5,7 @@
           display: none;
       }
       .el-transfer{
+          max-height: 200px;
           min-width: 100% !important;
           display: flex;
           justify-content: space-between;