Introduction
The parent selector & helps you write CSS rules that relate to the current selector without repeating it. It keeps your styles organized and easy to read.
When you want to style a child element based on its parent class.
When you need to add a hover effect or state style to the same element.
When you want to create nested styles without repeating the full selector.
When you want to combine the parent selector with pseudo-classes like :hover or :focus.
When you want to write cleaner and shorter CSS code.