Page background color vs. flexbox / layout grid background color

[zorigt]

Hi, I am sure this has been asked before, but I couldn't find the thread. How can I have different page background color and flexbox / layout grid background color. When I choose a background color for flexbox / layout grid, it stretches entire width of the screen, hiding the page background color. I am trying to have max width of 1024px for the content in the center of the page, and the rest of the screen in different color, just like this forum. Thanks.

[Pablo]

For Layout Grids, this is possible if you set the max-width to a negative value.
For example, -1024px

See the help for more details.

[zorigt]

Thanks a lot.