body{
	font: 10pt Verdana,sans-serif;
	color: navy;
}
.trigger{
	cursor: pointer;
	cursor: hand;
	display: block;
	margin-top: 4px;
	margin-bottom: 4px;  	
}
.box{
  background-color: yellow;  
  border: 2 solid navy;
  margin-left:2px;
  padding-left: 2px;
  padding-right: 2px;
}
.leaf{
  display: block;
	margin-top: 4px;
	margin-bottom: 4px;
}
.branch{
	display: block;
	margin-left: 32px;
	margin-top: 4px;
	margin-bottom: 4px;
}
a{
	text-decoration: none;
}
a:hover{
	text-decoration: underline;
}