diff --git a/web/layout.tmpl b/web/layout.tmpl
index 9530b9f..7262813 100644
--- a/web/layout.tmpl
+++ b/web/layout.tmpl
@@ -8,7 +8,11 @@
     <link rel="stylesheet" href="https://unpkg.com/purecss@2.0.6/build/pure-min.css" integrity="sha384-Uu6IeWbM+gzNVXJcM9XV3SohHtmWE+3VGi496jvgX1jyvDTXfdK+rfZc8C1Aehk5" crossorigin="anonymous">
     <link rel="stylesheet" href="https://unpkg.com/purecss@2.0.6/build/grids-responsive-min.css">
     <style>
-        pre { font-size: 70%; }
+        pre {
+          font-size: 60%;
+          height: 100px;
+          overflow:auto;
+        }
     </style>
 </head>
 <body style="margin:4; padding:4">
