VTTRegion: regionAnchorX property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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The regionAnchorX property of the VTTRegion interface represents the x-coordinate of the region anchor, as a percentage of the region's width.

Value

A number, in the range 0 to 100 inclusive, representing the x-coordinate of the region anchor as a percentage of the region's width. The default is 0.

Exceptions

IndexSizeError DOMException

Thrown when set to a value that is negative or greater than 100.

Examples

In the following example, a new VTTRegion is created, then the value of regionAnchorX is set to 30. The value is then printed to the console.

js
const region = new VTTRegion();
region.regionAnchorX = 30;
console.log(region.regionAnchorX);

Specifications

Specification
WebVTT: The Web Video Text Tracks Format
# dom-vttregion-regionanchorx

Browser compatibility