Hi there, the Blog page isn’t actually meant to be used as one of the featured pages in Goran – that’s why the display is looking off. Those featured pages are designed for any static page – not the blog. 🙂 You also haven’t selected pages for the other two featured-page areas, so they are blank at the moment.
This rough CSS will get your existing posts displaying side-by-side:
.home .featured-page article {
display: inline-block;
}
Additional tweaks will likely be needed, though.
This forum is for folks running the WordPress software on their own hosting, but since you’re hosted over at WordPress.com, you can get help over in the WordPress.com CSS Customization forums:
https://en.forums.wordpress.com/forum/css-customization
One thing I noticed is that you copied the entire stylesheet into the CSS editor. The editor is meant only for adding CSS that you want to override the original. It’s not necessary or recommended to add the entire stylesheet there.
I’m closing this thread but feel free to start a new one over at WordPress.com where folks will be glad to help.