Page Title: Datenbanken - Normalisierung - Funktionsweise
May 20, 2018 05:04

Control moving, blinking or auto-updating content

Actions

Severity Action
Manual Check If the page includes moving, blinking, scrolling or auto-updating content, verify there has a mechanism to pause, stop, or hide the information.

Details

Rule ID Timing 2
Definition A page that includes moving, blinking, scrolling or auto-updating content that starts automatically and lasts more than 5 seconds must have a mechanism to pause, stop, or hide such content.
Purpose
  • People with visual impairments and visual processing learning disabilities may not be able to read or understand content that is blinking, scrolling or auto updating
WCAG Success Criteria

2.2.2 Pause, Stop, Hide (Level A, Primary Success Criterion)

Rule Category Timing
Scope Element
Target Resources Canvas, SVG and image animations; moving, blinking, scrolling or auto-updating text content; and embedded applications
  • applet
  • embed
  • img
  • object
Techniques
  • Pause/Resume: Through configuration or controls on the page, enable the user to pause and resume the moving, blinking, scrolling or auto-updating content.
  • Stop: Through configuration or controls on the page, enable the user to stop the moving, blinking, scrolling or auto-updating content and see all of the content at one time.
  • Hide: Through configuration or controls on the page, enable the user to hide the moving, blinking, scrolling or auto-updating content if it is not essential for the activity.
Informational Links

Element Results

Element Identifier Result Element Position Message

Column Definitions

Element Identifier
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.