These days it's actually pretty easy with CSS flexbox or grid.
Re:2009scape – Runescape in 2009
by marginalia_nu on Saturday August 19, 2023 @07:55AM
(#37187836)
You can get the boxes in the right places, but you can't style them in nearly the same way.
It's surprisingly easy to make that sort of design if you use the right tools. You just drew it in photoshop and sliced it up and exported it as an HTML table, then you poked out the bits where the content was supposed to go.
Doing it with CSS is a right pain in the ass though. I guess that's why there are so many mono-colored rectangles in modern web design.