Yanek1988 has created an HTML5 canvas line animation called Beautiful Math which shows creates a geometric figure step by step.
Comments from the Author (translated):
Many times I browsed on different sites of the cool drawings. Unfortunately I was not blessed with a talent for drawing and I could not create anything like the same. As I reviewed materials related to the element <canvas> – new HTML5 tag, I saw a cool drawings created using straight lines. I thought it would be nice to do something with math.