src/views/3DOverview/components/LeftContentMonitor.vue

@@ -33,8 +33,8 @@ export default {
 
 .monitor-pic {
   height: 100%;
-  width: 260px;
-  /* background-position: 100% 100%; */
+  flex: 1;
+  background-position: 100% 50%;
   background-size: cover;
   background-repeat: no-repeat;
 }