We add common WordPress CSS classes which are often used by Themes to add own CSS selectors. Check the option “Disable Theme’s styles” and that classes wouldn’t be added by default.
Adding or disabling common WordPress CSS classes:
%date% | post-date |
%post_tag% | post-tags widget_tag_cloud tagcloud |
%category% | post-categories entry-categories |
%author% | post-author |
%more-link% | more-link |