The racoon is doing what racoons do and refusing to scale for mobile
I'm afraid, the course wasn't intended to be used on mobile screens. This might change in the second edition of the course that I plan to finish by the end of the year, but right now the minimal screen size recommended is 1024 × 768. Everything below that works "as is". As far as I know, the problem can be slightly mitigated by rotating your device in a horizontal position. And while the slides will look more or less fine, the main problem on mobile will be live examples that you'll encounter later in the course.
If mobile is your only way to consume the content, I recommend you download the offline version of the course. It has a better mobile layout, although it lacks any live examples. I can also offer you a refund if you're upset about this problem. In any case, please let me know whether I can further help you.
I primarily consume the content through my computer so it is fine, thank you for the refund offer though.
Служба підтримки клієнтів працює на UserEcho