diff --git a/packages/diff-view/src/parts/RenderCss/RenderCss.ts b/packages/diff-view/src/parts/RenderCss/RenderCss.ts
index a42f41e..5beea38 100644
--- a/packages/diff-view/src/parts/RenderCss/RenderCss.ts
+++ b/packages/diff-view/src/parts/RenderCss/RenderCss.ts
@@ -24,14 +24,20 @@ export const renderCss = (oldState: DiffViewState, newState: DiffViewState): any
   --ScrollBarHeight: ${scrollBarHeight}px;
   --ScrollBarBackgroundImage: ${scrollBarBackgroundImage};
   --ScrollBarThumbTop: ${scrollBarThumbTop}px;
+  --DiffEditorSashLeft: 20px;
 }
 
+
 .DiffEditor {
   display: flex;
   position: relative;
   width: 100%;
 }
 
+.DiffEditor .Sash {
+  left: var(--DiffEditorSashLeft);
+}
+
 .DiffEditorHorizontal {
   flex-direction: row;
 }