mask-border-mode

The mask-border-mode CSS property indicates whether the value for mask-border-source is treated as luminance mask or alpha mask.

mask-border-mode: value;

object.style.maskBorderMode = "value";

<'mask-border-mode'> = luminance | alpha

luminance

Indicates that the luminance values of the mask should be used.

alpha

Indicates that the alpha values of the mask should be used.

alpha

mask-border

mask-border-outset

mask-border-repeat

mask-border-slice

mask-border-source

mask-border-width

World Wide Web Consortium (W3C)