.hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/7/csm_Duisburg_57a49a06e5.jpg); }@media screen and (min-width: 640px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/7/csm_Duisburg_488014f057.jpg); } }@media screen and (min-width: 960px) { .hte-image-grid .b0 { background-image: url(/fileadmin/_processed_/7/7/csm_Duisburg_8e212cdad6.jpg); } }