.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/0/2/csm_Bonn_011a96a012.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/0/2/csm_Bonn_48f78b6625.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/0/2/csm_Bonn_3922767d1f.jpg); } }