.desktop_not {display: none}
.mobile_not {display: block}
.mobile_not.desktop_not {display: none}
#hamburger {display: none}

@media only screen and (max-width: 850px) {
    .mobile_not {display: none}
    .desktop_not, .mobile_not.desktop_not {display: block}
    .module-onepage-navigation {display: none}
    #navi .mod_navigation{padding: var(--abs);}
    #back ul{display: none}
    #hamburger {display: block}
    footer {display: none}
    .content-gallery ul li {flex-basis: 47%;margin-bottom: calc(0.5*var(--absklein));}
    .content-gallery.vierbilder ul li {flex-basis: 30%;}
    .literatur {padding-top: 0}
    #container #main h1.content-headline {padding-top: var(--abs);}
    body:not(.allebilder) .vierbilder.content-gallery:not(.show-all) ul li:nth-child(9) {    display: block !important;}
    body:not(.allebilder) .vierbilder.content-gallery.show-all ul li:nth-child(21) {    display: block !important;}
    .image-license {font-size: calc(0.7*var(--font-copy));}
}