This is a recreation of the Fork me on GitHub ribbon in CSS, hence resolution-independent.

See 'em in action! http:https://simonwhitaker.github.io/github-fork-ribbon-css/

Feel free to fork, tweak and send me a pull request.

Note: this project is not sponsored or in any way endorsed by GitHub.

Add polymer element,

<fork-me url="https://github.com/Urucas/github-fork-ribbon-css" position="right"></fork-me>