diff --git a/documentation/css/docs.css b/documentation/css/docs.css
index e25edeaa..f4acc049 100644
--- a/documentation/css/docs.css
+++ b/documentation/css/docs.css
@@ -205,6 +205,7 @@ div.code {
 
 #repl_source, #repl_results {
   background: transparent;
+  outline: none;
 }
   #repl_source {
     border: 0;