[Bassetts]

I created a pure CSS stopwatch last year. Was a bit of a brainwave in the shower after I had been playing with CSS animations. I was quite surprised how well it turned out, it works exactly as I imagined it would.

https://codepen.io/bassetts/pen/oQWdLK

[rangerpolitic]

You can do quite a lot with nothing but HTML/CSS.

https://codepen.io/jcoulterdesign/pen/NOMeEb