#sp-logo .sp-retina-logo {display: none;}


@media only screen and (-webkit-min-device-pixel-ratio: 1.5),only screen and (-moz-min-device-pixel-ratio: 1.5),only screen and (-o-min-device-pixel-ratio: 1.5),only screen and (min-device-pixel-ratio: 1.5) {
  #sp-logo .sp-default-logo {display: none;}
  #sp-logo .sp-retina-logo {display: block;}
  }