左侧菜单固定

src/pages/home/index.module.less

@@ -1,16 +1,20 @@
 .layout-wrap {
-  width: 100%;
-  min-height: 100vh;
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
   display: flex;
   .left-menu {
     width: 200px;
-    height: auto;
+    height: 100%;
     float: left;
   }
   .right-cont {
     flex: 1;
     display: flex;
     flex-direction: column;
+    background-color: #f6f6f6;
     .right-top {
       width: 100%;
       height: 48px;