diff --git a/src/compenents/left-menu/index.tsx b/src/compenents/left-menu/index.tsx
index 7c9cfde..54668d2 100644
--- a/src/compenents/left-menu/index.tsx
+++ b/src/compenents/left-menu/index.tsx
@@ -67,7 +67,7 @@ const children2Parent: any = {
 
   "/member": ["4"],
   "/department": ["4"],
-  
+
   "/course": ["5"],
 
   "/system/administrator": ["6"],
@@ -93,7 +93,14 @@ export const LeftMenu: React.FC = () => {
   return (
     <div className={styles["left-menu"]}>
       <div
-        style={{ textDecoration: "none", cursor: "pointer" }}
+        style={{
+          textDecoration: "none",
+          cursor: "pointer",
+          position: "sticky",
+          top: 0,
+          zIndex: 10,
+          background: "#fff",
+        }}
         onClick={() => {
           window.location.href = "/";
         }}
diff --git a/src/pages/home/index.module.less b/src/pages/home/index.module.less
index dc375e9..981bb5b 100644
--- a/src/pages/home/index.module.less
+++ b/src/pages/home/index.module.less
@@ -8,12 +8,15 @@
     float: left;
   }
   .right-cont {
-    flex:1;
+    flex: 1;
     display: flex;
     flex-direction: column;
     .right-top {
       width: 100%;
       height: 48px;
+      position: sticky;
+      top: 0;
+      z-index: 10;
     }
     .right-main {
       width: 100%;