Changing the size of the Storyline player

I am trying out Articulate Storyline 2 by working on a short project for work. I got my project finished and published it. The problem is, the player takes up the entire computer screen, and often the seekbar and the Previous and Next buttons get hidden underneath the task bar at the bottom of the screen. Sometimes, even when the task bar is set to autohide, you still can't see the entire Next button in the lower right-hand corner of the screen.

I would like to make the player a little smaller so that ALL of it can be seen on the screen. I'm going through the Storyline manual that I purchased through Amazon, and it seems that it is possible to adjust the size of the player, although it doesn't give the specific procedure. Can anyone help?

Kathy H.