Maximum page width in project setting affects header area only

Hello forum!

In the Project Settings I am supposed to be able to limit the maximum width of the page
(compare: Project Settings – Blocs – User Documents).
However this setting only seems to work for the header area. The body still scales to full-width.

Compare these two screenshots:

max. width 800px

max width 1170 px

How can I limit (and center) the body area as well?

Looks like you’ve used the wrong blocs. if you expand your web browser and the images follow the width of your browser then the blocs you need are on the right without the line separating them. These will follow your max width settings you set up

@steviemc

Thank you for your response!
I tried the blocs to the right. They do indeed follow the width set in the project settings. Unfortunately I cannot assign different background colours to the different columns.