. The thing we need to do to set the position relative and z-index for the attribute. React pop over component for Tailwind CSS that appears to the bottom of a button on user hover. The perfect starting point for your next project and the ultimate resource for learning how experts build real websites with Tailwind CSS. Aug 16, 2020 This is just how CSS works, appearance-none just sets appearance none; so whatever that does is what the utility does.