In my conversion of a website for a club in my community, I stumbled across Gantry 5. 5.5 had just been released a couple days earlier.
While Gantry has been around for at least 4-5 years, it was something I was not acquainted with.
I had been noticing many websites now have multiple rows of designs, but had not known how they were built. Well Gantry with the Helium theme breaks a page into 10 rows that can be individually tailored for different layouts. If that isn't enough for you you can add subrows that keep the style of their respective row.
It turns out Gantry is used in a number of Wordpress and Joomla sites. Lucky for me it also runs on Grav.
There are also various widgets called atoms and particles to handle different things to display within each row.
I've switched a couple of the websites I help manage over to Gantry. Will this Coridium site switch over??? Who knows Christmas is coming and often during the holidays I make major changes to the site during the down time with the family.