diff --git a/demos/side-by-side/index.html.in b/demos/side-by-side/index.html.in
index 51827ccecd..45547452ad 100644
--- a/demos/side-by-side/index.html.in
+++ b/demos/side-by-side/index.html.in
@@ -34,7 +34,7 @@
             </tr>
             <tr>
                 <td>Zoom:</td>
-                <td>double-click, shift+double-click, mouse wheel, +/- keys, shift+drag (DOM only)</td>
+                <td>double-click, shift+double-click, mouse wheel, <code>+</code>/<code>-</code> keys; shift+drag (DOM only)</td>
             </tr>
             <tr>
                 <td>Rotate:</td>