.pa-header{background:transparent;-webkit-transition:background-color 0.5s ease-in-out;-moz-transition:background-color 0.5s ease-in-out;-o-transition:background-color 0.5s ease-in-out;transition:background-color 0.5s ease-in-out}.pa-fixed-header{background-color:#000000!important;-webkit-transition:background-color 0.5s ease-in-out;-moz-transition:background-color 0.5s ease-in-out;-o-transition:background-color 0.5s ease-in-out;transition:background-color 0.5s ease-in-out}