set height mobile logo amp

@media
only screen and (-webkit-min-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) {
    .amp-wp-header .jeg_mobile_logo {
        background-size: auto 25px;
    }
}