.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/1/csm_Potsdam_a7ce7897a3.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/1/csm_Potsdam_ea92413393.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/4/1/csm_Potsdam_6039b5bbe3.jpg); } }