#block-search.fixed {
    position: fixed!important;
    z-index: 99!important;
    top: 0!important;
    margin-top: 0!important;
    left: 0;
    right: 0;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.3);
    width: 100%!important;
    max-width: 100%;
    border-radius: 0!important;
}
#block-search.fixed>div {
    max-width: 1260px;
    margin: 0 auto;
}