diff --git a/docs/.vuepress/public/images/smart.png b/docs/.vuepress/public/images/smart.png
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Binary files a/docs/.vuepress/public/images/smart.png and b/docs/.vuepress/public/images/smart.png differ
diff --git a/docs/README.md b/docs/README.md
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--- a/docs/README.md
+++ b/docs/README.md
@@ -26,7 +26,7 @@ npm i pandora --save
   <h2>因为XiUOS，所以无限可能</h2>
   <div class="item">
     <div class="col img">
-      <img src="images/smart.png" />
+      <img src="images/smart.png" width="400"/>
     </div>
     <div class="col">
       <h3>微型智能框架，让物联网节点具有智能</h3>