diff --git a/admin/index.html b/admin/index.html
index 7aa53b0..64c1b97 100644
--- a/admin/index.html
+++ b/admin/index.html
@@ -133,7 +133,7 @@
     }
   </style>
 </head>
-<body class="scroll">
+<body>
 <noscript>
   <strong>您的浏览器禁用了JavaScript脚本，系统无法正常为您提供服务</strong>
 </noscript>
@@ -155,37 +155,5 @@
   document.body.addEventListener('touchmove', function (e) {
     e.preventDefault();
   }, {passive: false});
-  //禁止下拉
-  var overscroll = function (el) {
-    el.addEventListener('touchstart', function () {
-      var top = el.scrollTop
-        , totalScroll = el.scrollHeight
-        , currentScroll = top + el.offsetHeight
-      //If we're at the top or the bottom of the containers
-      //scroll, push up or down one pixel.
-      //
-      //this prevents the scroll from "passing through" to
-      //the body.
-      if (top === 0) {
-        el.scrollTop = 1
-      } else if (currentScroll === totalScroll) {
-        el.scrollTop = top - 1
-      }
-    })
-    el.addEventListener('touchmove', function (evt) {
-      //if the content is actually scrollable, i.e. the content is long enough
-      //that scrolling can occur
-      if (el.offsetHeight < el.scrollHeight)
-        evt._isScroller = true
-    })
-  }
-  overscroll(document.querySelector('.scroll'));
-  document.body.addEventListener('touchmove', function (evt) {
-    //In this case, the default behavior is scrolling the body, which
-    //would result in an overflow.  Since we don't want that, we preventDefault.
-    if (!evt._isScroller) {
-      evt.preventDefault()
-    }
-  })
 </script>
 </html>