A little CSS helper app from Henri Parviainen. So you can quickly design up some beefy ass scrollbars like Tim Burners Lee probably intended.

I prodded Henri to add the standardized scrollbar-color in addition to the more fancy -webkit- ones as well as use the custom properties.
I imagine, one fateful day, the standardized properties is all we will have. And today, Firefox, rightfully, only supports that. So now the output has both, even though scrollbar-color is required to be put on a specific element and supports less.
If you visit in Firefox, you’ll get a big warning and less supported features. My vote would be to just show the whole app and let it show what it shows for the example scrollbar.
Thoughts?
Email me or comment below.
Also CodePen PRO is quite a deal. π