diff --git a/index.html b/index.html
index 7c7b176..5a57b05 100644
--- a/index.html
+++ b/index.html
@@ -141,7 +141,7 @@
       padding-top: 0 !important;
     }
 
-    .sidebar, .interaction-bar {
+    .sidebar, .interaction-bar, .content-area.button {
       -webkit-user-select: none;
       user-select: none;
     }