A marquee is a type of live region containing non-essential information which changes frequently.
The marquee role defines an area as a type of live region that presents non-essential information that changes frequently. Examples of marquees include stock tickers and ad banners; information that is not necessarily sought out by the user that may be presented in any order. The main difference between a marquee and a log is that log information is presented in a meaningful order such as a by date.
Elements with the role marquee have an implicit aria-live value of off.
The marquee is required to have an accessible name. Use aria-labelledby if a visible label is present, otherwise use aria-label.
aria-liveDefines when assistive technology should inform the user of updates to content. Elements with the role marquee have an implicit aria-live value of off, meaning screen readers will not announce changes inside the marquee, even when the user is idle.
aria-label or aria-labelledbyThe marquee is required to have an accessible name. Use aria-labelledby if a visible label is present, otherwise use aria-label.