diff --git a/public/CSS/fd2html.css b/public/CSS/fd2html.css
index a1676e6..fde9135 100644
--- a/public/CSS/fd2html.css
+++ b/public/CSS/fd2html.css
@@ -12,5 +12,6 @@ h1 a { background :none;  color:black }
 h1 a:visited { color:black }
 h2 { font-size:2rem; }
 h3 { font-size:1.5rem; }
+h4 { font-size:1.2rem; }
 header li a:visited { color:white; }
 table caption { font-weight: bolder}
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