@media only screen and (max-width:980px){.four-columns .et_pb_column{width:50%!important}}.clients-logo .et_pb_column{width:25%!important}.air-purifiers .et_pb_column{width:33.33%!important}#footer-bottom{display:none!important}.hak-header{background-color:rgba(0,16,11,.5)!important;-webkit-transition:background-color .6s ease-out;-moz-transition:background-color .6s ease-out;-o-transition:background-color .6s ease-out;transition:background-color .6s ease-out}.hak-fixed-header{background-color:#00100B!important;border-bottom:1px solid #00aeff!important;-webkit-transition:background-color .6s ease-out;-moz-transition:background-color .6s ease-out;-o-transition:background-color .6s ease-out;transition:background-color .6s ease-out}