.site-map-list {
    max-height: 0;
    overflow: hidden;
    transition: 0.25s linear;
    margin-left: 12px;
}

.site-map-list.closing {
    transition: 0.15s linear;
}

/*
a:focus+.site-map-list {
  max-height: 15em;
}*/
/* only select that link , here using the href attribute */
/*
a[href="nowhere"]:focus {
  pointer-events: none;
}*/