拖拽功能优化

ui/src/views/monitor/pfd/index.vue

@@ -286,7 +286,7 @@ body{
 
 /* 拖拽 */
 .mode{
-  position: fixed;
+  position: absolute;
   left: "calc(100% - 1300px)";
   bottom: "calc(100% - 500px)";
   z-index: 99;