Wonderful demo by Jhey Tompkins, showcasing some recreated glitch effect buttons based upon Cyberpunk 2077.
Recreate the Cyberpunk 2077 Button Glitch Effect in CSS →
If you can’t quite follow there — as it’s quite a big demo — here’s a more simplified demo from 2015 featuring a simple glitch text effect:
See the Pen
CSS Glitch by Bramus (@bramus)
on CodePen.
Both demos work in a similar way: data is duplicated, and a clip-path is being animated on top of it.