style of pre

diff --git a/www/style.css b/www/style.css
index b4e45cd..2347e88 100644 (file)
--- a/www/style.css
+++ b/www/style.css
@@ -74,7 +74,9 @@ nav a:hover {
 pre {
         margin: 1em 1em 1em 1em;
         padding: 1em 1em 1em 1em;
-       background-color: #dfdfdf;
+        border-left-style: solid;
+        border-left-color: black;
+        border-left-width: 6px;
 }
 
 code {