I Can Triforce
I thought I couldn't for a second there. Would have been a funnier joke.
I was working through Sean Fioritto's Sketching With CSS tonight and thought I could probably do something with just divs and flexbox. Ended up making use of SCSS mixins as well, which was a pleasant surprise.
Triangles in CSS is pretty trippy. My understanding is that you're defining the entire triangle with only borders (one solid, two transparent). Still not sure how they come together to make a solid triangle. I'll just settle for Internet Magic for now.