Join egghead, unlock knowledge.

Want more egghead?

This lesson is for members. Join us? Get access to all 3,000+ tutorials + a community with expert developers around the world.

Unlock This Lesson
Become a member
to unlock all features

Level Up!

Access all courses & lessons on egghead today and lock-in your price for life.


    Animate Between CSS Classes with GreenSock


    GreenSock enables you to animate between classes defined in your stylesheets using the className syntax in your tween properties. This lesson walks you through using the mouseover/mouseout and mousedown/mouseup events to add and remove css classes based on the specific event.