The mask-border-outset CSS property specify the amount by which the mask border image area extends beyond the border box.
Syntax
CSS
mask-border-outset: value;
JS
object.style.maskBorderOutset = "value";
Values
<'mask-border-outset'> = [ <length> | <number> ]{1,4}
<length>
Specifies the length using a number followed by a unit of measurement.
<number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
Initial
0
