windows 8 bottom bar being funny

I pressed something accidentally and the bar which usually runs along the bottom is now at the side, it has the clock/chrome shortcut on it

link with screenshot is here http://i.gyazo.com/651a4d277ef82be3d1423a7458776af5.gif

does anyone know what's happened or how to fix it? Computers are not my forte..

Eulis

EDIT: I did it myself don't worry!!