.fixed-header {
    position: fixed !important;
    bottom: 0 !important;
    left: 0;
    right: 0;
    width: 100%; 
    max-width: 100% !important;
    -webkit-transition: 500ms ease;
    -moz-transition: 500ms ease;
    -o-transition: 500ms ease;
    transition: 500ms ease;
}