diff --git a/Identity/Webenv/Css/Docbook/headings.css b/Identity/Webenv/Css/Docbook/headings.css
index b3d9387..1345f98 100755
--- a/Identity/Webenv/Css/Docbook/headings.css
+++ b/Identity/Webenv/Css/Docbook/headings.css
@@ -56,7 +56,7 @@ div.book > div.titlepage div.abstract p.title {
 
 div.preface > div.titlepage h2.title {
     font-size: 2em;
-    margin-top: 0.5em;
+    margin-top: 1em;
     }
 
 div.appendix > div.titlepage h2.title,