An animated version of Aesop's The Hare and the Tortoise drawn using CSS and a single HTML element for Divtober:

If it goes too quick (or is it fast?), here is a screenshot of the animation:

Something I learned from coding this one: Safari has some type of problem with the radial gradients when they have a value of 100%. It shows them squared. An easy hacky solution: use 99.9% instead of 100%.