The following code shows how to create tree.
<!--<!--from w w w. j a v a 2 s. c om-->
Code revised from
http://fiddle.jshell.net/jhfrench/GpdgF
-->
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-2.0.1.js'></script>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css">
<script type='text/javascript'
src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/js/bootstrap.min.js"></script>
<style type='text/css'>
.tree {
min-height: 20px;
padding: 19px;
margin-bottom: 20px;
background-color: #fbfbfb;
border: 1px solid #999;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
border-radius: 4px;
-webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
-moz-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05)
}
.tree li {
list-style-type: none;
margin: 0;
padding: 10px 5px 0 5px;
position: relative
}
.tree li::before, .tree li::after {
content: '';
left: -20px;
position: absolute;
right: auto
}
.tree li::before {
border-left: 1px solid #999;
bottom: 50px;
height: 100%;
top: 0;
width: 1px
}
.tree li::after {
border-top: 1px solid #999;
height: 20px;
top: 25px;
width: 25px
}
.tree li span {
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border: 1px solid #999;
border-radius: 5px;
display: inline-block;
padding: 3px 8px;
text-decoration: none
}
.tree li.parent_li>span {
cursor: pointer
}
.tree>ul>li::before, .tree>ul>li::after {
border: 0
}
.tree li:last-child::before {
height: 30px
}
.tree li.parent_li>span:hover, .tree li.parent_li>span:hover+ul li span
{
background: #eee;
border: 1px solid #94a0b4;
color: #000
}
</style>
<script type='text/javascript'>//<![CDATA[
$(window).load(function(){
$(function () {
$('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch');
$('.tree li.parent_li > span').on('click', function (e) {
var children = $(this).parent('li.parent_li').find(' > ul > li');
if (children.is(":visible")) {
children.hide('fast');
$(this).attr('title', 'Expand this branch').find(' > i').addClass('icon-plus-sign').removeClass('icon-minus-sign');
} else {
children.show('fast');
$(this).attr('title', 'Collapse this branch').find(' > i').addClass('icon-minus-sign').removeClass('icon-plus-sign');
}
e.stopPropagation();
});
});
});//]]>
</script>
</head>
<body>
<div class="tree well">
<ul>
<li><span><i class="icon-folder-open"></i> Parent</span>
<a href="">Comments</a>
<ul>
<li><span><i class="icon-minus-sign"></i> Child</span>
<a href="">Comments</a>
<ul>
<li><span><i class="icon-leaf"></i> Grand Child</span>
<a href="">Comments</a></li>
</ul></li>
<li><span><i class="icon-minus-sign"></i> Child</span>
<a href="">Comments</a>
<ul>
<li><span><i class="icon-leaf"></i> Grand Child</span>
<a href="">Comments</a></li>
<li><span><i class="icon-minus-sign"></i> Grand Child</span>
<a href="">Comments</a>
<ul>
<li><span><i class="icon-minus-sign"></i> Great
Grand Child</span> <a href="">Comments</a>
<ul>
<li><span><i class="icon-leaf"></i> Great great
Grand Child</span> <a href="">Comments</a></li>
<li><span><i class="icon-leaf"></i> Great great
Grand Child</span> <a href="">Comments</a></li>
</ul></li>
<li><span><i class="icon-leaf"></i> Great Grand
Child</span> <a href="">Comments</a></li>
<li><span><i class="icon-leaf"></i> Great Grand
Child</span> <a href="">Comments</a></li>
</ul></li>
<li><span><i class="icon-leaf"></i> Grand Child</span>
<a href="">Comments</a></li>
</ul></li>
</ul></li>
<li><span><i class="icon-folder-open"></i> Parent2</span>
<a href="">Comments</a>
<ul>
<li><span><i class="icon-leaf"></i> Child</span>
<a href="">Comments</a></li>
</ul></li>
</ul>
</div>
<div class="tree">
<ul>
<li><span><i class="icon-calendar"></i> 2013, Week 2</span>
<ul>
<li><span class="badge badge-success"><i
class="icon-minus-sign"></i> Monday, January 7: 8.00 hours</span>
<ul>
<li><a href=""><span><i class="icon-time"></i>
8.00</span> – Changed CSS to accomodate...</a></li>
</ul></li>
<li><span class="badge badge-success"><i
class="icon-minus-sign"></i> Tuesday, January 8: 8.00 hours</span>
<ul>
<li><span><i class="icon-time"></i> 6.00</span> –
<a href="">Altered code...</a></li>
<li><span><i class="icon-time"></i> 2.00</span> –
<a href="">Simplified our approach to...</a></li>
</ul></li>
<li><span class="badge badge-warning"><i
class="icon-minus-sign"></i> Wednesday, January 9: 6.00 hours</span>
<ul>
<li><a href=""><span><i class="icon-time"></i>
3.00</span> – Fixed bug caused by...</a></li>
<li><a href=""><span><i class="icon-time"></i>
3.00</span> – Comitting latest code to Git...</a></li>
</ul></li>
<li><span class="badge badge-important"><i
class="icon-minus-sign"></i> Wednesday, January 9: 4.00 hours</span>
<ul>
<li><a href=""><span><i class="icon-time"></i>
2.00</span> – Create component that...</a></li>
</ul></li>
</ul></li>
<li><span><i class="icon-calendar"></i> Week 3</span>
<ul>
<li><span class="badge badge-success"><i
class="icon-minus-sign"></i> Monday, January 14: 8.00 hours</span>
<ul>
<li><span><i class="icon-time"></i> 7.75</span> –
<a href="">Writing documentation...</a></li>
<li><span><i class="icon-time"></i> 0.25</span> –
<a href="">Reverting code back to...</a></li>
</ul></li>
</ul></li>
</ul>
</div>
</body>
</html>