If you're familiar with our Layout & Design tool, then you know it's comprised of columns, rows, and different sets of elements that can be nested inside each other. There are also Conditional Content elements, which allow you to set IF statements that display elements based on conditions you define.
IF the site is rendering on mobile, show four posts.
IF the site is rendering on desktop, show eight posts.
We've now upgraded this feature to make it even more comprehensive: