--- a/web/data/cubicweb.css	Tue Feb 14 15:14:22 2012 +0100
+++ b/web/data/cubicweb.css	Tue Jul 10 15:07:23 2012 +0200
@@ -39,6 +39,12 @@
   padding: %(h3Padding)s;
 }
 
+
+h4 {
+  font-size: %(h4FontSize)s;
+}
+
+
 div.tabbedprimary + h1,
 h1.plain {
  border-bottom: none;
@@ -214,9 +220,6 @@
     font-style: italic;
 }
 
-.align-center{
-    text-align: center;
-}
 
 /***************************************/
 /*   LAYOUT                            */
@@ -978,11 +981,20 @@
 /********************************/
 
 img.align-right {
-  margin-left: 1.5em;
+  margin-left: auto;
+  display:block;
 }
 
 img.align-left {
-  margin-right: 1.5em;
+  margin-right: auto;
+  display:block;
+}
+
+img.align-center{
+  text-align: center;
+  margin-left: auto;
+  margin-right: auto;
+  display:block;
 }
 
 /******************************/