mask-borderThe mask-border CSS property sets how the edges of an element are masked. It is a shorthand for mask-border-outset, mask-border-repeat, mask-border-slice, mask-border-source, and mask-border-width.clipping-shapes-maskingClipping, shapes, and maskinglimitedhttps://drafts.csswg.org/css-masking-1/#mask-bordershttps://developer.mozilla.org/docs/Web/CSS/Reference/Properties/mask-bordercss.properties.mask-bordercss.properties.mask-border-outsetcss.properties.mask-border-repeatcss.properties.mask-border-slicecss.properties.mask-border-sourcecss.properties.mask-border-widthhttps://nowyoucanuse.com/features--mask-border.html