Hey!
You’ll need to use the post_class() function. This function will add several post-related classes to your posts’ main div. You can then use these classes to style your post, according to your needs.
https://codex.wordpress.org/post_class
You can see a detailed tutorial here:
http://www.wpbeginner.com/wp-themes/how-to-style-each-wordpress-post-differently/
Let me know if you need any further help 🙂
All of your recent questions depend partly on the theme you are using – please include more information AND a link to your site for better help.
