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.
Remember the 5 world records breaking Felix Baumgartner in his epic super sonic free fall from the edge of space? I bet you do, now you can watch the full behind the scenes documentary of this epic event.
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.
A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.