.tree li {
    list-style-type:none;
    margin:0;
    padding:10px 5px 0 5px;
    position:relative;
    line-height: 30px;
    white-space: nowrap;
    font-size: 105%;
}
.tree li::before, .tree li::after {
    content:'';
    left:-20px;
    position:absolute;
    right:auto
}
.tree li::before {
    border-left:1px solid #999;
    bottom:50px;
    height:100%;
    top:0;
    width:1px
}
.tree li::after {
    border-top:1px solid #999;
    height:20px;
    top:30px;
    width:25px
}
.tree li span {
    -moz-border-radius:5px;
    -webkit-border-radius:5px;
    border: 1px solid #d1d1d1;
    border-radius:5px;
    display:inline-block;
    width: 31px;
    text-decoration:none;
    position: relative;
    height: 30px;
    margin: 0 5px -9px 0;
}


.tree li span i {
    background-image: url(https://webarchive.lib.ntu.edu.tw:443/archive/wayback/20250207054212/https://www.ntpc.gov.tw/ch/images/inside/ic_close.png);
    width: 30px;
    display: block;
    height: 30px;
    background-repeat: no-repeat;
    position: absolute;
    left: 0;
    background-position: center;
    top: 50%;
    -webkit-transform: translate(0, -50%);
    transform: translate(0, -50%);
    opacity: 0.2;
    background-size: 25%;
}

.tree li a {
    /* opacity: 0.3; */
    padding: 5px 4px;
    display: inline-block;
    text-align: center;
    color: #3f51b5;
}

.tree li a img {
    width: 60%;
}

.tree li a:hover {
    opacity: 1;
}
.tree li.parent_li>span {
    cursor:pointer
}

.tree li.parent_li>span i {
    background-image: url(https://webarchive.lib.ntu.edu.tw:443/archive/wayback/20250207054212/https://www.ntpc.gov.tw/ch/images/inside/ic_close.png);
    opacity: 1;
    background-size: 14px;
}

.tree li.parent_li>span i.fa-plus-square {
    background-image: url(https://webarchive.lib.ntu.edu.tw:443/archive/wayback/20250207054212/https://www.ntpc.gov.tw/ch/images/inside/ic_open.png);
}

.tree li.parent_li>span i.open::before {background-image: url(https://webarchive.lib.ntu.edu.tw:443/archive/wayback/20250207054212/https://www.ntpc.gov.tw/ch/images/inside/ic_open.png);}
.tree li i.close_icon::before {
    display: inline-block;
    content: "-";
}
.tree>ul>li::before, .tree>ul>li::after {
    border:0
}
.tree li:last-child::before {
    height:30px;
}
.tree li.parent_li>span:hover, .tree li.parent_li>span:hover+ul li span {
    background:#eee;
    border:1px solid #94a0b4;
    color:#000
}





/*
     FILE ARCHIVED ON 5:42:12 二月 7, 2025 AND RETRIEVED FROM THE
     AN OPENWAYBACK INSTANCE ON 11:37:14 五月 22, 2026.
     JAVASCRIPT APPENDED BY OPENWAYBACK, COPYRIGHT INTERNET ARCHIVE.

     ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C.
     SECTION 108(a)(3)).
*/