CSS is a mighty powerful language for shaping your web objects. You will learn to create a two versions of a web button, one with and other without a transition.
You created your own movie in iMovie but you can't figure it out how to save the darn thing into a playable .mp4 file on your hard drive. I've been there, let me show you how to do that.
Camera images usually contain additional description about camera settings and scene information of the the picture taken. By using EXIF, you can view this data online.