Discussion note icon shows up when you click on diff on touch screen

app/assets/stylesheets/pages/diff.scss

@@ -34,6 +34,7 @@
     background: #fff;
     color: #333;
     border-radius: 0 0 3px 3px;
+    -webkit-overflow-scrolling: auto;
 
     .unfold {
       cursor: pointer;

app/assets/stylesheets/pages/notes.scss

@@ -286,7 +286,7 @@ ul.notes {
     padding: 4px;
     font-size: 16px;
     color: $gl-link-color;
-    margin-left: -60px;
+    margin-left: -56px;
     position: absolute;
     z-index: 10;
     width: 32px;