修改

src/components/sceneAtttribute/splitScreen/splitScreen.vue

@@ -142,7 +142,7 @@ export default {
   }
   .sm-panel {
     max-width: 300px;
-    // height: 75%;
+    height: 400px; //75%;
     max-height: 80%;
     top: 60px;
     left: 50px;