.nav-tree {
    position: relative;
    margin-bottom: 40px;
}
.nav-tree ul {
    margin-bottom: 0;
    list-style: none;
}
.nav-tree > ul {
    margin: -8px 0;
}
.nav-tree li {
    position: relative;
}
.nav-tree li a {
    display: block;
    padding: 8px 0;
    color: #333;
    text-transform: uppercase;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    font-family: Raleway, sans-serif;
}
.nav-tree li i {
    font-size: 14px;
    width: 16px;
    text-align: center;
}
.nav-tree li i:not(.icon-angle-down) {
    position: relative;
    top: 1px;
}
.nav-tree li a i.icon-angle-down {
    width: auto;
    font-size: 12px;
    margin-left: 2px;
}
.nav-tree li.active > a,
.nav-tree li.current > a,
.nav-tree li:hover > a {
    color: #673ab7 !important;
}
.nav-tree ul ul {
    display: none;
}
.nav-tree li.current > ul {
    display: block;
}
.nav-tree ul ul a {
    font-size: 12px;
    padding: 6px 0;
    letter-spacing: 1px;
    font-family: Lato, sans-serif;
    padding-left: 20px !important;
}
.nav-tree ul ul a i.icon-angle-down {
    font-size: 12px;
}
.nav-tree ul ul a {
    padding-left: 0;
}
.nav-tree ul ul ul a {
    padding-left: 40px;
}
.nav-tree ul ul ul ul a {
    padding-left: 60px;
}
.nav-tree ul ul ul ul ul a {
    padding-left: 80px;
}