diff --git a/static/config.html b/static/config.html
index 32463a80..17c743aa 100644
--- a/static/config.html
+++ b/static/config.html
@@ -10,6 +10,20 @@
     <link rel="stylesheet" href="./assets/webcomponents.css" />
     <link rel="stylesheet" href="./assets/style.css" />
     <link rel="stylesheet" href="./assets/color.css" />
+    <style>
+        body > div {
+            padding: 12px;
+
+            @media screen and (min-width: 900px) {
+                width: 900px;
+                margin: 0 auto;
+            }
+        }
+
+        ob-setting-select {
+            width: 210px;
+        }
+    </style>
     <!-- 脚手架 -->
     <!-- 渲染脚本 -->
     <script>