fix scrollbar

pulse.html

@@ -24,7 +24,18 @@
       transition: background-color .4s, color .4s;
     }
 
-    html, body { overflow: scroll; }
+   ::-webkit-scrollbar {
+     width: 7px;
+     height: 7px;
+   }
+
+   ::-webkit-scrollbar-track {
+     background: #151517;
+   }
+
+   ::-webkit-scrollbar-thumb {
+     background: #727272;
+   }
 
     html.light body {
       background: #efeaea;