#gridcard .column:first-child article:nth-child(odd){background:#333}.pa-header{background:transparent;-webkit-transition:background-color 2s ease-out;-moz-transition:background-color 2s ease-out;-o-transition:background-color 2s ease-out;transition:background-color 2s ease-out}.pa-fixed-header{background-color:#2984BB!important;-webkit-transition:background-color 2s ease-out;-moz-transition:background-color 2s ease-out;-o-transition:background-color 2s ease-out;transition:background-color 2s ease-out}