The design of the yellow/black cells holding language/tech tripped me out for a sec, on my laptop they're all crooked at the top but align themselves after a certain amount of scroll. Thought I was seeing an optical illusion but a refresh shows that it's not. I don't think this was intentional.
I see specific classes on the page that specify a one degree angle, so it seems to be intentional. I would guess it's to call your attention to the cells.
The one degree angle, while a little unusual, isn't what blows my mind. It's the disappearance after a small scroll. That's enough to make you think you were imagining things, might need to go to the eye doctor, etc...