@media (max-width: 320px){
            header {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_fc3bf9452a.jpg);
            }
        }
        @media (max-width: 320px) and (min-resolution: 2dppx){
            header {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_d467e7cda7.jpg);
            }
        }
        @media (max-width: 767px) and (min-width: 321px){
            header {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_823dc2a8eb.jpg);
            }
        }
        @media (max-width: 767px) and (min-width: 321px) and (min-resolution: 2dppx){
            header {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_4f23774a4d.jpg);
            }
        }
        @media (max-width: 992px) and (min-width: 768px){
            .header-image {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_ae62432b73.jpg);
            }
        }
        @media (max-width: 992px) and (min-width: 768px) and (min-resolution: 2dppx){
            .header-image {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_17d2a7ef9c.jpg);
            }
        }
        @media (max-width: 1200px) and (min-width: 993px){
            .header-image {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_c5f8054781.jpg);
            }
        }
        @media (max-width: 1200px) and (min-width: 993px) and (min-resolution: 2dppx){
            .header-image {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_a175fd18e4.jpg);
            }
        }
        @media (min-width: 1201px){
            .header-image {
                background-image: url(/fileadmin/_processed_/2/9/csm_20180620-DSC_0190-2_ed5d44e2e6.jpg);
            }
        }
        @media (min-width: 1201px) and (min-resolution: 2dppx){
            .header-image {
                background-image: url(/fileadmin/lv/galerie/Hintergrundbilder/20180620-DSC_0190-2.jpg);
            }
        }