diff --git a/packages/core/client/src/schema-component/antd/block-item/BlockItem.tsx b/packages/core/client/src/schema-component/antd/block-item/BlockItem.tsx
index 413d02fb0..09e40b35d 100644
--- a/packages/core/client/src/schema-component/antd/block-item/BlockItem.tsx
+++ b/packages/core/client/src/schema-component/antd/block-item/BlockItem.tsx
@@ -13,6 +13,7 @@ export const BlockItem: React.FC<any> = (props) => {
         props.className,
         css`
           position: relative;
+          overflow: hidden;
           &:hover {
             > .general-schema-designer {
               display: block;