Minor update: I've started work on combining the typographic scale I made with the grid framework I came up with. There's a few bugs surfacing but that's to be expected, and it's stuff that's easy to fix.
I also took the time to set up a template for metadata in the HTML head;
Open Graph tags, favicons, iOS icons etc.
Lastly, I'll point to the link I edited into my previous post again - Reflow is probably going to be very useful for simple prototyping, especially if you don't know code.