Formatting Post Box

I am wondering how/where to change the post containing box. I would like to customize the margins and adjust it on the page.

Here is a link to a post site:

I would like it to read more like this:

I have the custom CSS plugin, do I need to add something there to achieve this look?


Just for that post or for all? Try this out please:

.single-post .content-wrapper {
     max-width: 800px;
.single-post .content-area {
     width: 100%;

1 Like

Perfect, thank you Vlad. I was looking to do it for all posts and this worked like a charm.