diff --git a/ZR.Vue/src/assets/styles/index.scss b/ZR.Vue/src/assets/styles/index.scss
index e1a2728..8da1200 100644
--- a/ZR.Vue/src/assets/styles/index.scss
+++ b/ZR.Vue/src/assets/styles/index.scss
@@ -255,6 +255,13 @@ aside {
 	padding: 10px 20px !important;
 }
 
+/* tree border */
+.tree-border {
+  margin-top: 5px;
+  border: 1px solid #e5e6e7;
+  background: #FFFFFF none;
+  border-radius:4px;
+}
 .pagination-container .el-pagination {
 	right: 0;
 	position: absolute;