div.treesite {
    margin-left: -0.5rem;
    color: #444;
}

div.treesite a {
    text-decoration: none;
    color: #444;
}

div.treesite a:hover {
    text-decoration: underline;
}

  div.treesite a.active {
    color: black;
    -webkit-text-stroke-width: .02em;
  }

div.treesite button.tree {
    height: 1.1rem;
    width: 1.1rem;
    display: inline;
    margin-right: 0.1rem;
    margin-top: 0;
    padding: 0;
    background-color: transparent;
    border: 0;
    cursor: pointer;
}

div.treesite button.tree.blank {
    cursor: inherit;
}

div.treesite button.open {
    background: transparent url(octicons-16.svg#view-triangle-down) no-repeat 50%/100% 100%; 
    background-size: 1.5rem 1.5rem;
    opacity: 0.4;
}

div.treesite button.closed {
    background: transparent url(octicons-16.svg#view-triangle-right) no-repeat 50%/100% 100%; 
    background-size: 1.5rem 1.5rem;
    opacity: 0.4;
}

div.treesite li {
    display: block;
    line-height: 1.1em;
    font-size: 1em;
    margin-top: 0.3em;
    margin-bottom: 0.3em;
    margin-left: -1em;
}

div.treesite ul.hide {
    height: 0;
    visibility: hidden;
}