#block-site-branding a img {
  -webkit-transition: transform 0.25s ease-out;
  -moz-transition: transform 0.25s ease-out;
  -ms-transition: transform 0.25s ease-out;
  -o-transition: transform 0.25s ease-out;
  transition: transform 0.25s ease-out;
  max-width: 115px;
}

@media (min-width: 992px) {
  #block-site-branding a img {
    max-width: unset;
  }
}

#block-site-branding a:hover img, #block-site-branding a:focus img {
  transform: scale(1.02);
}