In the course

Once you are in the course, the rest of the home­page dis­ap­pears. This way, you work con­cen­trat­ed and free of distractions. 

For even more effi­cien­cy, we rec­om­mend switch­ing the brows­er to full screen (F11 key). Pressing the F11 key again will return you to the stan­dard brows­er view. 

Please switch to fullscreen now with the F11 key or the fol­low­ing button.

On a Mac, this works with Control + Command + F.