diff --git a/dev/demo/vc.html b/dev/demo/vc.html
index ca79de6..aa3822c 100644
--- a/dev/demo/vc.html
+++ b/dev/demo/vc.html
@@ -20,9 +20,9 @@
   color: black;
   padding: 1em;
   font-family: mono;
+  white-space: pre
 }
 
-
     </style>
   </head>
   <body>