.enter:before { background: url('bahnhof.jpg') no-repeat center center; background-size: cover; }

.enter > .document > .logo              { width: 155px; height: 40px; background: url('logo-white.png') no-repeat center center; background-size: contain; }

.enter .modal-form > .container > .logo { width: 155px; height: 40px; background: url('logo-blue.png') no-repeat center center; background-size: contain; }

header.main > .logo { width: 155px; height: 40px; background: url('logo-blue.png') no-repeat center center; background-size: contain; }
header.main > .logo { margin-top: 10px; margin-bottom: 10px; }