diff --git a/desktop/renderer-app/src/index.less b/desktop/renderer-app/src/index.less
index c98ad508018..e5d2f11db8e 100644
--- a/desktop/renderer-app/src/index.less
+++ b/desktop/renderer-app/src/index.less
@@ -5,4 +5,5 @@ body,
 .flat-theme-root {
     width: 100%;
     height: 100%;
+    overflow: hidden;
 }
diff --git a/web/flat-web/src/index.less b/web/flat-web/src/index.less
index c98ad508018..e5d2f11db8e 100644
--- a/web/flat-web/src/index.less
+++ b/web/flat-web/src/index.less
@@ -5,4 +5,5 @@ body,
 .flat-theme-root {
     width: 100%;
     height: 100%;
+    overflow: hidden;
 }