In such instances, there's no need to go search for the scroll bar. Instead, hold down the Shift key and scroll the mouse wheel. Scrolling down moves the content from left to right; scrolling up ...

By default, Windows only shows scroll bars when they are actually needed and when the operating system detects mouse ...

The scroll direction on a Mac is referred to as “natural,” but it might not feel natural to some. Here is how to change it for a trackpad and mouse.