p.tree,
ul.tree,
ul.tree ul
{line-height: 1.5em;
 list-style: none;
 margin: 0;
 padding: 0}

ul.tree ul
{margin-left: 1.0em}

ul.tree li
{margin-left: 0.35em;
 border-left: thin solid #000}

ul.tree li:last-child
{border-left: none}

ul.tree li:before
{width: 0.9em;
 height: 0.65em;
 margin-right: 0.1em;
 vertical-align: top;
 border-bottom: thin solid #000;
 content: "";
 display: inline-block}

ul.tree li:last-child:before
{border-left: thin solid #000}