/* Regulator/exchange logo strip: greyscale by default, full colour on hover/focus. */
.payment-img img{
  filter:grayscale(100%);
  opacity:0.6;
  transition:filter 0.3s ease, opacity 0.3s ease;
}
.payment-img a:hover img,
.payment-img a:focus img{
  filter:grayscale(0%);
  opacity:1;
}