Use UA style instead of prose to handle the exception of transform-origin for SVG.

Firefox:
/* Set |transform-origin:0% 0%;| for all SVG elements except outer-<svg>,
   noting that 'svg' as a child of 'foreignObject' counts as outer-<svg>.
*/
*:not(svg),
*:not(foreignObject) > svg {
  transform-origin:0 0;
}


WebKit/Blink:
/* CSS transform specification: "transform-origin 0 0 for SVG elements without associated CSS layout box, 50% 50% for all other elements". */
 
* {
    -webkit-transform-origin: 0 0;
}

html|* > svg {
    -webkit-transform-origin: 50% 50%;
}