Do you like animations in your dropdowns? Me too. Let's define some

It is that simple as create a CSS3 animation using the ember-basic-dropdown--transitioning-in, ember-basic-dropdown--transitioned-in and ember-basic-dropdown--transitioning-out classes that ember-basic-dropdown gives you automatically.

You will probably also want to use .ember-basic-dropdown-content--below and .ember-basic-dropdown-content--above to have different animations depending on where the dropdown is positioned.

Animate me

There is nothing else to know about animations, other that you have to use CSS animations, not transitions.

The dropdown takes care of creating a clone when closing the dropdown so you animation works in both directions.