顶部悬浮

src/compenents/left-menu/index.tsx

@@ -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 = "/";
         }}

src/pages/home/index.module.less

@@ -14,6 +14,9 @@
     .right-top {
       width: 100%;
       height: 48px;
+      position: sticky;
+      top: 0;
+      z-index: 10;
     }
     .right-main {
       width: 100%;