diff --git a/public/index.html b/public/index.html
index 9b6c82f..abfb768 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1,17 +1,25 @@
 <!DOCTYPE html>
 <html lang="">
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <link rel="icon" href="<%= BASE_URL %>xiaoxi.ico">
-    <title>ChatABC</title>
-  </head>
-  <body>
-    <noscript>
-      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
-    </noscript>
-    <div id="app"></div>
-    <!-- built files will be auto injected -->
-  </body>
+    <head>
+        <meta charset="utf-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width,initial-scale=1.0">
+        <link rel="icon" href="<%= BASE_URL %>xiaoxi.ico">
+        <title>ChatABC</title>
+    </head>
+    <body>
+        <noscript>
+            <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
+        </noscript>
+        <div id="app"></div>
+        <!-- built files will be auto injected -->
+    </body>
+    <style>
+        body{
+            margin: 0;
+            padding: 0;
+            background-color: rgb(245, 245, 245) ;
+
+        }
+    </style>
 </html>
