Desktop-first using React and Sass

It was a fun challenge. I decided to animate share buttons tray to slide in and out of the card (when the user click/tap the share button) in mobile layout, but I noticed when I'm accessing using iOS Safari, the slide-out animation would work fine until the last moment where it seems to reset its position back to its original open position for a fraction of a second before finally disappear. I wonder if there's another way to fix this.

Also, any additional advice is appreciated!