.megaMenu {
    position: fixed;
    top: 127px;
    transition: top .25s cubic-bezier(.17,.67,.32,1);
    left: 0;
    right: 0;
    background-color: #fff;
    box-shadow: 0 6px 6px rgba(0,0,0,.16);
}
.megaMenu__innerWrapper {
    width: 100%;
}
.megaMenu__innerWrapper {
    overflow: hidden;
}