Why do buttons have box-sizing of content-box even though I have a global box-sizing rule?

I am using the following rule globally:

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

But from some reason the buttons are content-box, even though there is no any other rule that may interfere with the above rule.

Also, when I check devtools, it shows that it is not using the above rule but instead it uses rule for button.