.bck,
.bck:hover {
    background:  #B0B63B;
    color: #000;
}

#header.sticky {
    position: fixed;
    width: 100%;
    left: 0px;
    top: 0px;
    z-index: 99;
    background: #fff;
    border-bottom: 5px solid #B0B63B;
}

#header.sticky .header-top {
    display: none;
}