fix expansion panels graphical bug

components/Ui/ExpansionPanel.vue

@@ -40,7 +40,7 @@ export default {
     height: 47px;
     padding: 10px;
     margin-right: 10px;
-    flex: none;
+    flex: none !important;
   }
   .v-expansion-panel-header{
     padding: 0;