report.css

body {
background:white;
font-family:Verdana,Arial,Helvetica,Sans-Serif;
font-size:12px;
padding:10px;
}

ul.tree, 
ul.tree ul {
  list-style:none;
  margin:0;
  padding:0;
}

ul.tree ul {
  margin-left:8px;
  position:relative;
}

ul.tree ul:before {
  content:"";
  display:block;
  width:0;
  position:absolute;
  top:0;
  bottom:0;
  left:0;
  border-left:1px solid;
}

ul.tree li {
  margin:0;
  padding:0 10px;
  font-size:12px;
  line-height:18px;
  color:#369;
  font-weight:bold;
  position:relative;
}

ul.tree ul li:before {
  content:"";
  display:block;
  width:12px;
  height:0;
  border-top:1px solid;
  position:absolute;
  top:8px;
  left:0;
}

ul.tree ul li:last-child:before {
  background:white;
  height:auto;
  bottom:0;
}

li a {
  text-decoration: none;
  display: block;
}

li.treehide ul { display: none; }
li.treeshow ul { display: block; }

div.pic {
  background:url(document.png) 0 0 no-repeat;
  padding-left: 17px;
  text-decoration:none;
  display:block;
  float:left;
  white-space:nowrap;
}

div.ref {
#  border:1px solid;
  text-decoration:none;
  display:block;
  white-space:nowrap;
}