ultra-white-button

Show "whiter than white color" for certain browsers using only CSS hack (without HDR video elements).

#whiter {
  color: white;
  filter: brightness(1.5);
  will-change: filter;
}

demos
- ultra-white-button
- simple-demo
browser support
- my iPhone's Safari and Chrome
  - (whiter color doesn't appear on my MacBook)