Header
This is the base framework that I use for my character pages. Its main feature is that it allows you to easily make a grid with varying element widths, which is ironically something much more easily accomplished with flexbox than grid. It's also a fairly good Tumblr knockoff layout if you're into that.
You can copy the source code for this from Github! Or just take it from the view source page directly.
Half-width section
This is a half-width section. All sections, regardless of their grid size, will take up the entire screen width on small screens (under 1024px wide).
Gallery
This is a half-width section. All sections, regardless of their grid size, will take up the entire screen width on small screens (under 1024px wide).