diff --git a/serializing.html b/serializing.html
index 7d48901..0feed73 100644
--- a/serializing.html
+++ b/serializing.html
@@ -6,7 +6,6 @@
 <link rel=stylesheet href=dip3.css>
 <style>
 body{counter-reset:h1 13}
-mark{display:inline}
 </style>
 <link rel=stylesheet media='only screen and (max-device-width: 480px)' href=mobile.css>
 <link rel=stylesheet media=print href=print.css>