#sidebar > ul {
    list-style: none;
    padding: 0;
}

#sidebar ul li a {
    font-size: 1.1rem;
    padding: 5px 15px;
    color: #fff;
    display: block;
    text-decoration: none;
    background: rgba(0,0,0,.1);
    margin-bottom: 1px;
}

#sidebar a[aria-expanded=true],
#sidebar ul li a:hover,
#sidebar ul li.active > a {
    background: rgba(0,0,0,.2);
}

#sidebar ul ul a {
    padding-left: 30px;
    background: rgba(255,255,255,.1);
}

#sidebar ul ul a:hover {
    background: rgba(255,255,255,.2);
}

#sidebar ul ul ul a {
    padding-left: 60px;
    background: rgba(255,255,255,.3);
}

#sidebar ul ul ul a:hover {
    background: rgba(255,255,255,.4);
}

#sidebar .btn.btn-default {
    background: rgba(0,0,0,.4);
    border: none;
    color: #fff;
}

#sidebar .btn.btn-default:hover {
    background: rgba(0,0,0,.5);
}

#sidebar hr {
    border-color: rgba(255,255,255,.3);
}