Remove negative margin for avatar in h2 and h3 (#26424).

Patch by Felix Gliesche.

git-svn-id: http://svn.redmine.org/redmine/trunk@16821 e93f8b46-1217-0410-a6f0-8f06a7374b81

public/stylesheets/application.css

@@ -1335,8 +1335,7 @@ div.gravatar-with-child > img.gravatar:nth-child(2) {
   border: 2px solid rgba(255, 255, 255, 0.9);
 }
 
-h2 img.gravatar {margin: -2px 4px -4px 0;}
-h3 img.gravatar {margin: -4px 4px -4px 0;}
+h2 img.gravatar, h3 img.gravatar {margin-right: 4px;}
 h4 img.gravatar {margin: -2px 4px -4px 0;}
 td.username img.gravatar {margin: 0 0.5em 0 0; vertical-align: top;}
 #activity dt img.gravatar {float: left; margin: 0 1em 1em 0;}