.tree li {
    list-style-type: none;
}

.tree li, .tree .list-group-item {
    margin: 0;
    position: relative;
    padding: 10px 5px 0;
}

.tree li > i, .tree .list-group-item > i {
    margin-right: 6px;
}

.tree li::before, .tree li::after,.tree .list-group-item::before, .tree .list-group-item::after {
    content: '';
    left: -30px;
    position: absolute;
    right: auto
}

.tree li::before,.tree .list-group-item::before {
    border-left: 1px solid red;
    bottom: 50px;
    height: 100%;
    top: 0;
    width: 1px
}

.tree li::after,.tree .list-group-item::after {
    border-top: 1px solid red;
    height: 20px;
    top: 30px;
    width: 35px
}

.tree li > span, .tree .list-group-item > span {
    border: 0px solid #fff;
    border-radius: 3px;
    display: inline-block;
    padding: 5px;
    text-decoration: none
}


.tree  > li::before, .tree > li::after,.tree  > .list-group-item::before, .tree > .list-group-item::after {
    border: 0
}

.tree li:last-child::before {
    height: 30px
}


.tree li > span > a,.tree .list-group-item > span > a {
    margin-left : 10px;
    text-decoration: none;
}



.lark-listing.accordion .arrow {
  float: right;
  line-height: 1.42857;
}
*[dir="rtl"] .lark-listing.accordion .arrow {
  float: left;
}

/*
 * Require Bootstrap 3.x
 * https://github.com/twbs/bootstrap
*/

.lark-listing.accordion .glyphicon.arrow:before {
  content: "\e079";
}
.lark-listing.accordion .active > a > .glyphicon.arrow:before {
  content: "\e114";
}

/*
 * Require Font-Awesome
 * http://fortawesome.github.io/Font-Awesome/
*/

.lark-listing.accordion .fa.arrow:before {
  content: "\f104";
}
.lark-listing.accordion .active > a > .fa.arrow:before {
  content: "\f107";
}

/*
 * Require Ionicons
 * http://ionicons.com/
*/

.lark-listing.accordion .ion.arrow:before {
  content: "\f3d2"
}
.lark-listing.accordion .active > a > .ion.arrow:before {
  content: "\f3d0";
}
.lark-listing.accordion .plus-times {
  float: right;
}
*[dir="rtl"] .lark-listing.accordion .plus-times {
  float: left;
}
.lark-listing.accordion .fa.plus-times:before {
  content: "\f067";
}
.lark-listing.accordion .active > a > .fa.plus-times {
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}
.lark-listing.accordion .plus-minus {
  float: right;
}
*[dir="rtl"] .lark-listing.accordion .plus-minus {
  float: left;
}
.lark-listing.accordion .fa.plus-minus:before {
  content: "\f067";
}
.lark-listing.accordion .active > a > .fa.plus-minus:before {
  content: "\f068";
}
.lark-listing.accordion .mm-collapse:not(.mm-show) {
  display: none;
}

.lark-listing.accordion .mm-collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  transition-timing-function: ease;
  transition-duration: .35s;
  transition-property: height, visibility;
}

.lark-listing.accordion .has-arrow {
  position: relative;
}

.lark-listing.accordion .has-arrow::after {
  position: absolute;
  content: '';
  width: .5em;
  height: .5em;
  border-width: 1px 0 0 1px;
  border-style: solid;
  border-color: initial;
  right: 1em;
  -webkit-transform: rotate(-45deg) translate(0, -50%);
  transform: rotate(-45deg) translate(0, -50%);
  -webkit-transform-origin: top;
  transform-origin: top;
  top: 50%;
  transition: all .3s ease-out;
}

*[dir="rtl"] .lark-listing.accordion .has-arrow::after {
  right: auto;
  left: 1em;
  -webkit-transform: rotate(135deg) translate(0, -50%);
  transform: rotate(135deg) translate(0, -50%);
}

.lark-listing.accordion .active > .has-arrow::after,
.lark-listing.accordion .has-arrow[aria-expanded="true"]::after {
  -webkit-transform: rotate(-135deg) translate(0, -50%);
  transform: rotate(-135deg) translate(0, -50%);
}

*[dir="rtl"] .lark-listing.accordion .active > .has-arrow::after,
*[dir="rtl"] .lark-listing.accordion .has-arrow[aria-expanded="true"]::after {
  -webkit-transform: rotate(225deg) translate(0, -50%);
  transform: rotate(225deg) translate(0, -50%);
}

.sidebar-nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
    background: #343a40;
}

.sidebar-nav .lark-listing.accordion {
    background: #212529;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
}

.sidebar-nav .lark-listing.accordion li + li {
  margin-top: 5px;
}

.sidebar-nav .lark-listing.accordion li:first-child {
  margin-top: 5px;
}
.sidebar-nav .lark-listing.accordion li:last-child {
  margin-bottom: 5px;
}


.sidebar-nav .lark-listing.accordion > li {
    /*-webkit-box-flex: 1;
    -ms-flex: 1 1 0%;
    flex: 1 1 0%;*/
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    position: relative;
}
.sidebar-nav .lark-listing.accordion a {
    position: relative;
    display: block;
    padding: 13px 15px;
    color: #adb5bd;
    outline-width: 0;
    transition: all .3s ease-out;
}

.sidebar-nav .lark-listing.accordion ul a {
    padding: 10px 15px 10px 30px;
}

.sidebar-nav .lark-listing.accordion ul ul a {
    padding: 10px 15px 10px 45px;
}

.sidebar-nav .lark-listing.accordion a:hover,
.sidebar-nav .lark-listing.accordion a:focus,
.sidebar-nav .lark-listing.accordion a:active {
    color: #f8f9fa;
    text-decoration: none;
    background: #0b7285;
}