In the upper border you will find for zones in which the first and second give access to the topics and courses contained in the web page. In the remaining pages this bar is used to navigate being the first zone that one goes up one level, the second to the fourth zone for fast navigation of the pages accessing the first, middle and last page. The final right field tells you which page you are on.
The last two top zones are for language change to Spanish and German.
This page is the first of a series of highlighted pages that you can reach by sweeping left or right.
Each page can be pressed to access the corresponding theme. This same page takes you to a help on how to navigate the version for people with limited visual capacity.