For a long time, in CSS land, developers were longing for a feature that allowed to select the parent of a particular element.

In this example, we have two .parent elements but with different children. With the :has() pseudo selector, we can select the parent of a particular child. With this we can apply some styling only to that particular parent.

This opens up a lot of possibilities such as

✨ Style a list when a particular element is hovered
✨ Style a card depending on whether or not it has an image
✨ Style a header depending on whether or not it has an hyperlink

The possibilities are endless 🔥

A visualization of different flex axes in CSS, for different flex directions 😎