Pinned tabs changing their size on video or audio play

While playing any video or music in Safari browser pinned tabs changing their inner padding to bigger while something is playing and getting back to normal inner padding while nothing is playing.

Steps to reproduce:

1. Have some pinned tabs in current window of Safari
2. Open any page with video or music element in it
3. Play video or music

Link to video

Device information:

OS: macOS Sonoma 14.4.1 (23E224)

Safari: 17.4.1 (19618.1.15.11.14)

Device: MacBook Pro, 16-inch, 2021, Z14V0008BRU/A