样式

src/views/index.vue

 
 <template>
-  <el-container style="height: 500px; border: 1px solid #eee">
+  <el-container style="height: 100%; border: 1px solid #eee">
     <el-aside width="200px" style="background-color: rgb(238, 241, 246)">
       <el-menu :default-openeds="['1', '3']">
         <el-submenu index="1">