diff --git a/index.html b/index.html
index f285a2e..d4d754e 100644
--- a/index.html
+++ b/index.html
@@ -147,7 +147,7 @@
                 </div>
                 <div class="mod-fixedbar">
                     <div class="bd">
-                        <a href="javascript:;"><img src="static/image/gotop.png" width="24" height="24"></a>
+                        <a class="gotop" href="javascript:;" rel="nofollow"><img src="static/image/gotop.png" width="24" height="24"></a>
                     </div>
                 </div>
             </div>
@@ -322,19 +322,19 @@
             })();
 
             // 底部滚动
-            (function () {
+            (function(){
                 let timer = null;
-                let $gotop = document.querySelector('.mod-fixedbar a');
-                $gotop.addEventListener('click', function () {
+                let $gotop = document.querySelector('.mod-fixedbar .gotop');
+                $gotop.addEventListener('click',function(){
                     cancelAnimationFrame(timer);
-                    let scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
-                    let move = scrollTop / 18;
-                    timer = requestAnimationFrame(function fn() {
-                        var oTop = document.body.scrollTop || document.documentElement.scrollTop;
-                        if (oTop > 0) {
-                            document.body.scrollTop = document.documentElement.scrollTop = oTop - move;
+                    let scrollTop = document.documentElement.scrollTop;
+                    let move = scrollTop/18;
+                    timer = requestAnimationFrame(function fn(){
+                        var oTop = document.documentElement.scrollTop;
+                        if(oTop > 0){
+                            document.documentElement.scrollTop = oTop - move;
                             timer = requestAnimationFrame(fn);
-                        } else {
+                        }else{
                             cancelAnimationFrame(timer);
                         }
                     });
diff --git a/static/style/index.css b/static/style/index.css
index 944fde2..2e4edf6 100644
--- a/static/style/index.css
+++ b/static/style/index.css
@@ -500,7 +500,6 @@ a:hover{
     line-height: 30px;
 }
 
-
 .mod-fixedbar .bd {
     position: fixed;
     right: 20px;
@@ -514,25 +513,13 @@ a:hover{
     height: 48px;
     margin-bottom: 2px;
     background: rgba(255,255,255,0.8);
-    border: 1px solid #f0f0f0;
+    box-shadow: 1px 1px 6px rgba(0,0,0,0.1);
     line-height: 48px;
     text-align: center;
 }
-.mod-fixedbar .bd .popup{
-    display: none;
-    position: absolute;
-    right: 50px;
-    bottom: 0;
-    z-index: 99;
-    border: 1px solid #f0f0f0;
-    box-shadow: 0 0 2px 0 rgba(0,0,0,0.05);
-}
 .mod-fixedbar .bd a:hover{
     background: rgba(255,255,255,0.9);
 }
-.mod-fixedbar .bd a:hover .popup{
-    display: block;
-}
 
 @media screen and (max-width: 1020px) {
     .header{