@media all and (-webkit-min-device-pixel-ratio: 2),
all and (min--moz-device-pixel-ratio: 2),
all and (-o-min-device-pixel-ratio: 2/1),
all and (min-device-pixel-ratio: 2),
all and (min-resolution: 192dpi),
all and (min-resolution: 2dppx) {
.amp-button.mail {
    background-image:url("files/amp/layout/icon-mail-02@2x.png");
    background-size: 44px 32px;
}
#hauptnavigation-mobil select {
    background-image:url("files/amp/layout/hamburger@2x.png");
}
#newsletter {
    background-image:url("files/amp/layout/newsletter-bg@2x.jpg");
}
}