Create split section with one side extending the full width of the browser

I am new to Webflow :slight_smile:
I am trying to create a few sections on my site, split in half with the color backgrounds extending the full width of a browser window- although the container is set to 1200 max width.

I have set the section bg to color.
But for the other half- how to make that extend? and should this be done using a grid, or columns, or just div blocks.

This is a basic element that many sites have, there must a be a straightforward way to set this up in Webflow. But I cant figure this one out.

Thank you in advance for taking the time to help me out with this!