Safari Blink

This issue is just for safari.

For clickable or touchable items like <a /> or an item with onClick callback, when touched, you can notice there's a quick blink.

It's ok for webpages, but for web applications like a PWA, this blink may be the last thing you want to see. Here the

stackoverflow.com link talked about this issue and solution.

* {
  -webkit-backface-visibility: hidden;
  -webkit-tap-highlight-color: transparent;
}