Building The Body Of A Page

Hey there,

I'd like the body / main content of utilise similar grid / box design that this landing page uses https://www.impression.co.uk/digital-marketing/seo/ under the "SEO services section", although I may want to have three sections across a page rather than two.

I'm not really too sure how to go about building the body of a page?

I have downloaded the beta GenerateBlocks plugin. I'm building the site from scratch, so my logic is to use the generate blocks plugin from the off and make necessary (hopefully) small tweaks when the plugin has come out of beta.

Hopefully you guys can help. Thanks!