I don't think it's just the browser's scrollbars one the side, and sometimes the bottom, of the page. It's all scrollbars inside the page as well. They're tradi

I don't think it's just the browser's scrollbars one the side, and sometimes the bottom, of the page. It's all scrollbars inside the page as well. They're traditionally considered part of the OS UI so are left alone. At the moment, people who really want to change the scrollbars internal to the page can replace them with js scrollbars.