the parent of the child
to call getComputedStyle for an SVG, the SVG has to be a member of the DOM, if it is not, use this function to create an invisible parent element on the window to satisfy this requirement.
Description
to call getComputedStyle for an SVG, the SVG has to be a member of the DOM, if it is not, use this function to create an invisible parent element on the window to satisfy this requirement.