@media screen and (max-width:450px){.content_a{background-image:url(../images/main/coverfinal_sxhhth_c_scale,w_450.png);background-image:-webkit-image-set(url(../images/main/coverfinal_sxhhth_c_scale,w_450.webp) 1x,url(../images/main/coverfinal_sxhhth_c_scale,w_450.png) 1x)}.payment{margin:20% 5% 20% 5%}}