diff --git a/src/layout/background/index.tsx b/src/layout/background/index.tsx
index d4d3503..d62478d 100644
--- a/src/layout/background/index.tsx
+++ b/src/layout/background/index.tsx
@@ -19,7 +19,7 @@ export default defineComponent({
           ></div>
         )}
         <div
-          class="absolute left-0 top-0 w-[250px] h-[195px] bg-black"
+          class="absolute left-0 top-0 w-full h-full bg-black"
           style={{
             zIndex: 1,
             backgroundColor: `rgba(0,0,0,${settings.state.maskOpacity})`,