css
I just now discovered that Codepen closed down their blog post functionality. I had some content written on that platform, so I guess it's time to migrate it to my core site.
One such article is a fun breakdown I wrote back in 2016 on how I built an SNES controller using CSS+HTML.

https://alexstandiford.com/articles/essays/a-breakdown-of-the-snes-controller-built-with-css-html
A Breakdown of the SNES Controller Built With CSS & HTML
Let’s walk through the steps I went through to create a CSS+HTML-based SNES Controller on CodePen.

How I use Transform to Better-Position CSS Elements
Let’s talk a little bit about how transform can be used to position elements, and how CSS rotate interacts with translate.