@media only screen and (max-width:320px){.at-mt #header #nav-wrapper{float:none;clear:both;}}@media only screen and (min-width:321px) and (max-width:580px){.at-mt #header #nav-wrapper{float:none;clear:both;}}@media only screen and (min-width:581px) and (max-width:768px){.at-mt #header #nav-wrapper{float:none;clear:both;}}@media only screen and (min-width:769px) and (max-width:1024px){.at-mt #header #nav-wrapper{float:none;clear:both;}}@media only screen and (min-width:1025px){}