diff --git a/previews/dashboard.html b/previews/dashboard.html
index baf606e..45d06ad 100644
--- a/previews/dashboard.html
+++ b/previews/dashboard.html
@@ -6,6 +6,29 @@
 
 </head>
 <body>
+<!--scroller-->
+  <style>
+/* width */
+::-webkit-scrollbar {
+  width: 10px;
+}
+
+/* Track */
+::-webkit-scrollbar-track {
+  background: #808080;
+}
+
+/* Handle */
+::-webkit-scrollbar-thumb {
+  background: #0000FF;
+}
+
+/* Handle on hover */
+::-webkit-scrollbar-thumb:hover {
+  background: #00ffff;
+}
+</style>
+  <!--end of scroller-->
 <!--back to top btn-->
 <button onclick="topFunction()" id="myBtn" title="Go back to the top.">&uarr;</button>
 <script>
