/* ===== NAV TREE ===== */
#navMenu:not(.nav_hidden) {
    grid-column: 1 / span 1;
    flex-direction: column;
    grid-auto-flow: row;
    align-content: flex-start;
    /* align-content:center; */
    font-size: 2em;
}
.nav_hidden {
    display: none;
}
.nav_link {
    display: block;
    grid-row: auto;
    margin: 5px;
    max-width: 100%;
    text-align: center;
    background-color: #304d75;
    box-shadow: 3px 3px 2px #131e2f;
}
.nav_link_anchor {
    display: block;
    margin: 3px;
    padding: 5px;
    max-width: 100%;
    border-bottom: 2px solid #acc5df;
    border-left: 2px solid #acc5df;
    text-align: center;
    background-color: #304d75;
}