[Name] mask-size [Value] # [Initial] auto [Applies to] All elements. In SVG, it applies to container elements excluding the element and all graphics elements [Inh.] no [%ages] n/a [Media] visual [Animatable] as repeatable list of simple list of length, percentage, or calc (This means keyword values are not animatable.) [Computed value] 
as specified, but with lengths made absolute