.drop-nav > ul {
    display: none;
}

.drop-nav.active > ul {
    display: block;
}

.marcar {
    border-left: 2px solid transparent;
    transition: border-left 0.6s;
    border-radius: 3px;
    text-decoration: none;
}
.marcar:hover, .marcar:focus {
    color: #1C84C6;
    border-left: solid 4px #1C84C6;
    border-radius: 3px;
}
.submarcar {
    border-left: 1.2px solid transparent;
    transition: border-left 0.4s;
    border-radius: 3px;
    text-decoration: none;
}
    .submarcar:hover, .submarcar:focus {
        color: #18A689;
        border-left: solid 4px #1C84C6;
        border-radius: 3px;
    }
.rounded-top {
    border-radius: 15px 15px 0 0;
}