diff --git a/src/platforms/h5/components/app/layout.vue b/src/platforms/h5/components/app/layout.vue
index 75f90c996770b876888882919d1e085cbf132f58..b6880a7298f16cedd0ebcd450d0326037162f685 100644
--- a/src/platforms/h5/components/app/layout.vue
+++ b/src/platforms/h5/components/app/layout.vue
@@ -253,6 +253,10 @@ export default {
     flex: 1;
   }
 
+  uni-top-window+uni-content {
+    height: calc(100vh - var(--window-top));
+  }
+
   uni-left-window {
     position: relative;
     width: var(--window-left);
@@ -275,7 +279,7 @@ export default {
     left: 0;
     right: 0;
     top: 0;
-    z-index: 998;
+    z-index: 998;
     overflow: hidden;
   }
 </style>