修改看板

src/views/board/index.vue

@@ -40,6 +40,10 @@
         <span style="line-height: 2vw;color: #fff;vertical-align: top;;font-size: 12px">报警设备</span>
       </div>
     </div>
+    <div class="leftTop">
+      <el-button size="mini" @click="$router.push('/')" type="primary">返回首页
+      </el-button>
+    </div>
 
     <div v-if="isNo">
       <div class="id id1">15.01</div>
@@ -1430,6 +1434,12 @@ export default {
   left: 2.5%;
 }
 
+.leftTop {
+  position: absolute;
+  top: 4.5%;
+  left: 2.5%;
+}
+
 </style>
 <style>