diff --git a/packages/react/src/widgets/ComponentTreeWidget/styles.less b/packages/react/src/widgets/ComponentTreeWidget/styles.less
index 53487a46a..8557e296b 100644
--- a/packages/react/src/widgets/ComponentTreeWidget/styles.less
+++ b/packages/react/src/widgets/ComponentTreeWidget/styles.less
@@ -1,5 +1,12 @@
 @import '../../variables.less';
 
 .@{prefix-cls}-component-tree {
-  min-height: 90%;
-}
+  min-height: 100%;
+  display: flex;
+  min-width: 100%;
+
+  &>* {
+    min-height: 100%;
+    min-width: 100%;
+  }
+}
\ No newline at end of file