.file-tree i{
    margin-left: 4px;
    color: #a2abb3;
}
.file-tree{
    color: #353a3e;
    font-size: 14px;
}
.file-list, .file-list ul{
    position: relative;
    list-style-type: none;
    font-size:1em;
    line-height:1.8em;
    margin-left:-6px;
    padding-left:0px;
}

.file-list li{
    position: relative;
    padding-left:12px;
}
.file-list li a{
    text-decoration: none;
    color: #353a3e;
}
.file-list .folder-root{
    position: relative;
    list-style-type: none;
}
.file-list .folder-root a{
    padding-left: 15px;
    position: relative;
    text-decoration:none;
    white-space: nowrap;
}
.file-list .folder-root>a:before{
    content: '';
    position: absolute;
    top: 2px;
    left: -8px;
    display: inline-block;
    width: 15px;
    height: 15px;
    border: solid 1px #04c5a0;
    background: url("../images/add-icon1.png") no-repeat center/7px 7px;
}

/* 涓婚鑹� */
.animal .file-list .folder-root>a:before{background: url(../images/add-b.png) no-repeat center/7px 7px;}
.fungi .file-list .folder-root>a:before{background: url(../images/add-o.png) no-repeat center/7px 7px;}

.file-list .folder-root.open>a:before{
    content: '';
    position: absolute;
    display: inline-block;
    width: 15px;
    height: 15px;
    border: 1px solid  #04c5a0;
    background: url("../images/crease-icon1.png") no-repeat center/7px 1px;
}
li.folder-root ul{
    transition: all .3s ease-in-out;
    overflow:hidden;
}
li.folder-root.closed>ul{
    display: none;
}
li.folder-root.open>ul{
    position: relative;
    opacity:1;
    display:block;
}
/* li.folder-root.open>ul>li {
    display: inline-block;
} */

li.folder-root.closed>ul>li {
    display: none
}
li.folder-root[data-selected=true] {
    display: inline-block!important;
}
li.folder-root[data-selected=true]>ul, 
#families_tree {
    position: relative;
    opacity:1;
    display:block!important;
    z-index: 1
}
li[data-selected=false] {
    display: none;
}
.file-list .folder-root.open>ul>li:after{
    position: absolute;
    top: 23px;
    left: 11px;
    content: '';
    display: inline-block;
    width: 1px;
    height: calc(100% - 20px);
    border-left:1px dotted #ccc;
}
.file-list .folder-root.open>ul>li:last-child:after{
    border-left:none;
}

.folder-root.open>a.bg-a:after{
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    background-color: #b3b3b3;
    opacity: 0.2;
}