diff --git a/docs/css/style.css b/docs/css/style.css
index 1e9d4cc89..2957ae467 100644
--- a/docs/css/style.css
+++ b/docs/css/style.css
@@ -167,11 +167,6 @@ span.right-caret {
 
 tr.toggle {
     -webkit-touch-callout: none;
-    -webkit-user-select: none;
-    -khtml-user-select: none;
-    -moz-user-select: none;
-    -ms-user-select: none;
-    user-select: none;
     cursor:pointer;
 }