.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/f/csm_Bielefeld_d01493dd76.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/f/csm_Bielefeld_ff9c42009a.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/f/csm_Bielefeld_2f569e0176.jpg); } }