Mobile users:  Double-click on the slide to view the entire slide deck.

PC users:  The easiest way to navigate through the slides is to click on the "full screen button" (4 arrows),

then use the left and right arrows on your keyboard.  To return to the website, hit <Esc>. 

Note that the "download" options is disabled.  If you click on "upload", your device will just display the file you choose.