#buy:active > svg.path.bg,
#buy:hover > svg path.bg {
  fill: #90ff4a;
  transition: all 0.5s ease-in-out;
}
#buy:active > svg,
#buy:hover > svg {
  transform: scale(1.3);
  -webkit-transform: scale(1.3);
  -moz-transform: scale(1.3);
  transition: all 0.5s ease-in-out;
}