.file-list,
.file-list ul {
    list-style-type: none;
    font-size: 15px;
    font-family: monospace;
    line-height: 1.8em;
    margin-left: 0px;
    margin-top: 5px;
    padding-left: 12px;
    border-left: 1px dotted #aaa;
}
.file-list li {
    position: relative;
    padding-left: 16px;
}

.file-list li span {
    text-decoration: none;
    padding: 6px 6px 6px 6px;
    margin-left: 4px;
}

.file-list li span:hover {
    font-weight: bolder;
}

.file-list li span:before {
    display: block;
    content: " ";
    width: 10px;
    height: 1px;
    position: absolute;
    border-bottom: 1px dotted #aaa;
    top: 0.6em;
    left: 0px;
}
.file-list li:before {
    list-style-type: none;
    font-family: FontAwesome;
    display: block;
    content: url("icons/file.svg");
    position: absolute;
    top: 2px;
    left: 0px;
    width: 20px;
    height: 20px;
    font-size: 1.3em;
    color: #555;
}
.file-list .folder-root {
    list-style-type: none;
}

.file-list .folder-root:before {
    content: url("icons/folder_close.svg");
}
.file-list .folder-root.open:before {
    content: url("icons/folder_open.svg");
}
li.folder-root ul {
    transition: all 0.2s ease-in-out;
    overflow: hidden;
}
li.folder-root.closed > ul {
    opacity: 0;
    max-height: 0;
}
li.folder-root.open > ul {
    opacity: 1;
    display: block;
    max-height: 10000px;
}