It's really a pleasure to read Twitter's documentation. As you see, there is too little of free space on a page, so they had to add invisible horizontal scroll. Good luck to you in reading through all the 100 fields with their specs.
Talking seriously, I remember even in early 2000s that was considered as a huge flaw in web-design. Today is 2018. Why do we keep stepping on the same rakes again in again?