@media only screen and (-webkit-min-device-pixel-ratio:2),only screen and (min--moz-device-pixel-ratio:2),only screen and (-o-min-device-pixel-ratio:2/1),only screen and (min-device-pixel-ratio:2),only screen and (min-resolution:192dpi),only screen and (min-resolution:2dppx){.regular-logo{display:none}.logo a img.retina-logo{display:block}}