Styling comments, posts, and index

[imoudu13]

As it stands when a user visits the site, the posts expand until the end of the screen

• using CSS, put some space between the right side of the screen and the posts, effectively making it a third column.
• make the same changes for the post.php file

In the post page, the comments look bland, make it look pretty.

• Add a border around each comment, round the border radius