.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/f/csm_Heidelberg_84971b1163.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/f/csm_Heidelberg_ce7200c356.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/f/csm_Heidelberg_053cb63d80.jpg); } }