How to make a pie chart in CSS

Question

How can I create a pie chart with CSS like the one below?

Answer 1

Oh my! Have you seen Google Chart Tools?

https://google-developers.appspot.com/chart/interactive/docs/gallery/piechart

This is stupid easy to implement, but my problem with it is the "external api" part. If google decides to can this or google goes down, bye bye chart! But as far as beauty and the selection of other charts, google charts is kinda a cool find.