This is a clone of Flappy Bird (Wikipedia) written in HTML and CSS without JavaScript.

Blog post

• Desktop
  • Google Chrome 46
  • Firefox 42
• Mobile
  • Google Chrome 46

• Desktop
  • Internet Explorer 11
  • Safari 9
• Mobile
  • Safari (iOS 9.1)

All images are provided by Flappy Creator.
Contributed to NSEG Advent Calendar 2015.