scale(<sx> [<sy>]): specifies a scale operation by sx and sy. If <sy> is not provided, it is assumed to be equal to <sx>.
Further information:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 100 100" xmlns:xlink="http://www.w3.org/1999/xlink"></svg>