.dik_top,
.dik_bott{display:block;width:100%;height:90px}
@media(max-width:770px){.dik_top{height:60px}}
@media(max-width:510px){.dik_top{height:50px}.dik_bott{height:280px}}
@media(max-width:389px){.dik_bott{height:250px}}