Ancestor selectors are CSS selectors that allow you to target an element based on its relationship to another ancestor element.
For example, the selector div > h1 would target any h1 element that is a child of a div element.
The advantage of using ancestor selectors is that they can be used to create more specific selector chains.
For example, the selector div > h1 > p would target any p element that is a grandchild of both a div and an h1 element. This can be useful for styling complex document structures without having to use a lot of nested classes or IDs.