In my former life, I was a web application developer. I stopped doing that full-time in 2007 when I transitioned to teaching full-time. Obviously, in the intervening 16 (!) years, things have changed.

Anyone who has ever tried to build a website for the first time knows that awful feeling when confronted with lines of HTML, CSS, and PHP, languages as foreign as any known to man. Well, never fear.

These days, most people have an intuitive grasp of what a well-designed website looks and feels like. The pages load quickly, it adapts to different screen sizes and devices, and there’s a consistent ...