@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: 3/2),
only screen and (min-device-pixel-ratio: 1.5),
only screen and (min--moz-device-pixel-ratio: 1.5),
only screen and (-webkit-min-device-pixel-ratio: 1.5),
only screen and (min-resolution: 144dpi) {

    .header_mid .logo_wrap .logo img {
        display: none;
    }

    .header_mid .logo_wrap .logo .logo_retina {
        display: inline-block;
    }
}