Computer/Laptop
Mouse wheel method
Click anywhere within the course content, and hold down the 'Ctrl' key on your keyboard and scroll down with the mouse wheel, this should zoom out your display.
Plus/minus method
Click anywhere within the course content, and hold down the 'Ctrl' key on your keyboard and press the '+' or '-' key on your keyboard, this should change your view, try pressing either of them until the next button shows. Remember, '+' will zoom in, and '-' will zoom out.
0 method
Click anywhere within the course content, and hold down the 'Ctrl' key on your keyboard and press the '0' number key, this should reset out zoom to it's default setting, 100%, this should show your next button.
iPad/Tablet
Pinch to zoom
On the course content, place 2 fingers diagonally on the screen, and pull them together, making a pinch motion, this should zoom out your course and should show you the full content on the page.
(iPad only) AA zoom
Press the 'AA' icon and the top option should be a percentage, please ensure this is 100%, selecting it, should revert it to 100%.