.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/9/4/csm_Mainz_f0b358a91a.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/9/4/csm_Mainz_88dd53211d.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/9/4/csm_Mainz_61e9eaa556.jpg); } }