更新

src/views/index.vue

@@ -12,7 +12,7 @@
             </el-col>
           </span>
           <span v-else>
-            <el-col :span="24" class="list" v-for="(item, index) in classList" :key="index">
+            <el-col :span="24" class="classList" v-for="(item, index) in classList" :key="index">
               <p @click="classBtn(index)">{{ item.classname }}</p>
             </el-col>
           </span>
@@ -102,5 +102,8 @@ export default {
   .list {
     border: 1px solid red;
   }
+  .classList {
+    border: 1px solid blue;
+  }
 }
 </style>