.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/3/6/csm_Koeln_0e37737d98.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/3/6/csm_Koeln_cced4bf78d.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/3/6/csm_Koeln_ae11195f75.jpg); } }