diff --git a/templates/html/common/zim-style.css b/templates/html/common/zim-style.css
index a010549..507dc84 100644
--- a/templates/html/common/zim-style.css
+++ b/templates/html/common/zim-style.css
@@ -63,4 +63,35 @@
             font-size:small;            
         }
 
+        #upBtn {
+            display: none;
+            position: fixed;
+            bottom: 20px;
+            right: 30px;
+            z-index: 99;
+            font-size: 18px;
+            border: none;
+            outline: none;
+            background-color: #7777;
+            color: white;
+            cursor: pointer;
+            padding: 15px;
+            border-radius: 4px;
+        }
+        
+        #upBtn::before {
+            border-style: solid;
+            border-width: 0.25em 0.25em 0 0;
+            content: '';
+            display: inline-block;
+            height: 0.45em;
+            left: 0.15em;
+            position: relative;
+            top: 0.15em;
+            transform: rotate(-45deg);
+            vertical-align: top;
+            width: 0.45em;
+            margin-left:-0.2em;
+        }
+