diff --git a/packages/frontend/core/src/components/blocksuite/block-suite-editor/styles.css.ts b/packages/frontend/core/src/components/blocksuite/block-suite-editor/styles.css.ts
index 6eb878bc15..a70d83dae9 100644
--- a/packages/frontend/core/src/components/blocksuite/block-suite-editor/styles.css.ts
+++ b/packages/frontend/core/src/components/blocksuite/block-suite-editor/styles.css.ts
@@ -29,6 +29,7 @@ export const affineDocViewport = style({
 export const docContainer = style({
   display: 'block',
   paddingBottom: 64,
+  flexGrow: 1,
 });
 const titleTagBasic = style({
   fontSize: cssVar('fontH4'),