Scrolling yes, but not scrubbing. The latter is a feature that people use for navigating very large pages (e.g. I may remember the rough location of some sectio

Scrolling yes, but not scrubbing. The latter is a feature that people use for navigating very large pages (e.g. I may remember the rough location of some section of some programming language spec that I'm looking to consult, but the spec is 500 pages long)