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Hi, Find your single.php file in your theme folder.  THen change: to <h1 < span="">class="post-title entry-title"></h1 <> plus make sure you change the closing tag to that will be shortly after where you find that. If you have a child theme (recommended) then you will need to find this file in the main theme, and copy it across to your child theme before changing. NB: Make sure you back up before changing stuff!