When browsing the list with a keyboard (or hovering over items with the mouse when the focusOnHover prop is true), the active item element will have a data-active-item attribute. You can use this attribute to style the active item:
Because they behave similarly, it may not be obvious when to use Menu and when to use Select. Here are some guidelines to help you decide:
Use Select when the purpose is to select a value from a list of options. For example, a dropdown to select a country from a list of countries.
Use Menu when the purpose is to access a set of commands, actions, or links. For example, a dropdown to access a set of commands to edit a document.
There are also some differences in how both components behave. Similarly to the native <select> element, the Select button's text will reflect the selected item. The button may also have a label in addition to the value. When the SelectPopover opens, the selected item will be focused and brought into view.
On the other hand, MenuButton can't hold a value, only a label, which won't reflect the active item. It's usually a static call to action.