Gutenberg core block front-en styling

Hi!
I’m working on a custom theme and have a little problem, I can’t get the core styling of blocks working in the front-end. I have added the theme support for wp-block-styles.

But then I’m starting to add blocks, and for an example is if I add 3 blocks with different widths, one with default, one width align-wide and on with full width. All three blocks ends up with the same width.

So my main question is, what is the best way to handle this? Do I need to write up custom css to get this to work in my theme. Or is there any hook or something that I have missed?
What i’m after is to have and basic core block styling and just go in and adjust the styling of blocks that I need to change for this site. And also to have the styling uptodate with the latest styling from WordPress

• This topic was modified 5 years, 4 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not a Developing with WordPress topic