Scrollbars

Note: The contrast ratio of the scroll box and moving bar can also be maintained with a corresponding border around the moving bar.

Note 1: A moving bar might be recognizable as an interactive element on the basis of its border or its background color, for example.

Note 2: This requirement does not apply if the entire scrollbar is clearly recognizable as such, because of its position in combination with the buttons at the start and end and the scroll box, for example.

Note: The scrollbars should not receive keyboard focus, but the scrollable areas and/or elements within the scrollable areas.

Please note: Complex use of the pointing device means

• multipoint operation (e.g. swiping with several fingers),
• path-based operation (where the start and end points of the use of the pointing device are not just relevant, but at least one intermediate point is).

Note: This can be done enabling the scrolling by clicking on the moving bar or the buttons, for example.

Note 1: If the scrollable area does not contain any elements that allow for scrolling with the arrow keys, then the area itself must receive the focus.

Note 2: Elements that are themselves controlled by the arrow keys (such as input fields, selection lists and radio buttons) do not allow for the scrolling of the area in which they are located.

Note: If the technology used does not know the role of the scrollable area, reference should be made in the Accessible Description that the element for scrolling receives the focus.

Note: The scrollbar has the following values:

• Size of scroll box relative to the size of the moving bar (represents the size of the visible section)
• Position of scroll box within the moving bar.