Writing modes, box-model, margin, padding, positioning (relative/absolute), flexbox, grid, media queries and units (px, %, rem, em). I've tried following the b

Writing modes, box-model, margin, padding, positioning (relative/absolute), flexbox, grid, media queries and units (px, %, rem, em). I've tried following the blogs mentioned in the past but it wasn't really worth the bother. I don't really care about CSS beyond the need to use it to solve problems - and to do so with confidence that I know what I'm doing. That's the most important thing in CSS, to really understand the fundamentals so you're not frustrated or in a state of trial and error. Seen too many devs who work this way.