diff --git a/src/components/md-bg.tsx b/src/components/md-bg.tsx
index 2baaf35..347acfd 100644
--- a/src/components/md-bg.tsx
+++ b/src/components/md-bg.tsx
@@ -32,15 +32,16 @@ customElement("md-bg", {}, (props, { element }) => {
 
   const [image] = createResource(resolvedSrc, loadImage);
 
-  createEffect(() => {
-    // 图片加载完成后，将背景图片设置到 article 元素
-      console.log(resolvedSrc, image(), articleEl);
-    if (image() && articleEl) {
-      articleEl.style.backgroundImage = `url(${resolvedSrc})`;
-      articleEl.style.backgroundSize = 'cover';
-      articleEl.style.backgroundPosition = 'center';
-      articleEl.style.backgroundRepeat = 'no-repeat';
-    }
+    createEffect(() => {
+        // 图片加载完成后，将背景图片设置到 article 元素
+        if(!articleEl)return;
+        articleEl.style.backgroundImage = '';
+        if (image()) {
+            articleEl.style.backgroundImage = `url(${resolvedSrc})`;
+            articleEl.style.backgroundSize = 'cover';
+            articleEl.style.backgroundPosition = 'center';
+            articleEl.style.backgroundRepeat = 'no-repeat';
+        }
   });
 
   return null;