'What does sx={{'& > :not(style)': {m1}}} do in MUI 5?

I see them use this on their TextField page for having TextFields align correctly as the page gets smaller. What exactly does this css do?

sx={{'& > :not(style)': {m1}}}



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source