Hello How modify margins of post for a phone ? See the attach file. Thanks

Hi there, Where can I find the default "Post" .php file I have managed to find the list.php which allocates the individual duplicates with the name but I can't find the default Post.php file. Is this...

This page is tend to be what's called in joomla! "category blog" page, in Themler it's called "sample blog content" page. https://nimbus.everhelper.me/client/notes/share/447681/wp7lg14nqzvyv8k1vnt2 I...