.treeUL, .treeUL ul {
    list-style-type: none;
}

.treeUL {
    margin: 0;
    padding: 0;
}

.collapse.in {
    display: block !important;
}

.collapse:not(.in) {
    display: none !important;
}

.collapsible-item-title img {
    vertical-align: middle;
    border-style: none;
}

.collapsing {
    position: relative;
    height: 0;
    overflow: hidden;
    transition: height .35s ease;
}

.panel-collapse {
    -webkit-transition: height .35s ease;
    -moz-transition: height .35s ease;
    -o-transition: height .35s ease;
    transition: height .35s ease;
}

.row {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

.col {
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1;
    max-width: 100%;
}

.col, .col-1, .col-10, .col-11, .col-12, .col-2, .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-auto, .col-lg, .col-lg-1, .col-lg-10, .col-lg-11, .col-lg-12, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-auto, .col-md, .col-md-1, .col-md-10, .col-md-11, .col-md-12, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-auto, .col-sm, .col-sm-1, .col-sm-10, .col-sm-11, .col-sm-12, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-auto, .col-xl, .col-xl-1, .col-xl-10, .col-xl-11, .col-xl-12, .col-xl-2, .col-xl-3, .col-xl-4, .col-xl-5, .col-xl-6, .col-xl-7, .col-xl-8, .col-xl-9, .col-xl-auto {
    position: relative;
    width: 100%;
    min-height: 1px;
    padding-right: 15px;
    padding-left: 15px;
}

@media (min-width: 768px) {
    .col-md-1 {
        max-width: 8.333333%;
    }
    .col-md-11 {
        max-width: 91.666667%;
    }
}

.treeUL .collapsible-item-body ul {
    list-style-type: disc !important;
}

.c-bullet .c-bullet-down {
    cursor: pointer;
    border: none;
    text-align: left;
    outline: none;
}

.c-bullet::before {
    cursor: pointer;
    content: '\002B';
    padding: 1px 3px 1px 3px;
    font-weight: bold;
    font-size: 10px;
    background-color: gray;
    color: white;
    margin: 0px 5px;
}

li div.c-bullet:nth-child(1) {
    cursor: pointer;
}

li div.c-bullet-down:nth-child(1) {
    cursor: pointer;
}

li > div .c-bullet .c-bullet-down{
    margin: 20px;
}

.c-bullet-down::before {
    cursor: pointer;
    content: "\2212";
    padding: 1px 3px 1px 3px;
    font-weight: bold;
    font-size: 10px;
    background-color: gray;
    color: white;
    margin: 0px 5px;
}

.c-nested {
    display: none;
}

.c-active {
    display: block;
}

#preview section>.collapsible-item>.collapsible-item-heading {
    background: #fff !important;
    color: #000;
}

.collapsible-item-title-link-icon>.glyphicon-chevron-down:before {
    content: none !important;
}