tree in html-2

/1: complete /2: edited

by Rohit Bisht

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet" />
<script src="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/js/bootstrap.min.js"></script>

<div class="tree well">
    <ul class="tree">
        <li>
            <span class="Collapsable"><i class="icon-folder-open"></i> Parent</span> <a href="">Goes somewhere</a>
            <ul>
                <li>
                    <span class="Collapsable"><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a>
                    <ul>
                        <li>
                            <span class="Collapsable"><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a>
                        </li>
                    </ul>
                </li>
                <li>
                    <span class="Collapsable"><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a>
                    <ul>
                        <li>
                            <span class="Collapsable"><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a>
                        </li>
                        <li>
                            <span class="Collapsable"><i class="icon-minus-sign"></i> Grand Child</span> <a href="">Goes somewhere</a>
                            <ul>
                                <li>
                                    <span class="Collapsable"><i class="icon-minus-sign"></i> Great Grand Child</span> <a href="">Goes somewhere</a>
                                    <ul>
                                        <li>
                                            <span class="Collapsable"><i class="icon-leaf"></i> Great great Grand Child</span> <a href="">Goes somewhere</a>
                                        </li>
                                        <li>
                     ...

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;
}

.tree li::after {
  box-sizing: border-box;
  border-left: 1px solid #999;
  border-bottom: 1px solid #999;
  border-bottom-left-radius: 10px;
  height: 25px;
  top: 0px;
  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: 14px;
}

.tree li:not(.parent_li) span {
  position: relative;
}

.tree li span:before {
  content: "";
  position: absolute;
  /* border-width - 1px */
  left: -4px;
  bottom: calc(50% - 4px);
  border-color: transparent;
  border-left-color: #999;
  border-style: inherit;
  border-width: 4px;
}

/* another styles for parent_li immediate span children */
.tree li.parent_li > span:before {
  bottom: initial;
  left: 2px;
  top: 20.5px;
}

/* hide arrow for immediate children */
.tree > ul > li > span:before {
  display: none;
}

.tree li.parent_li > span:hover,
.tree li.parent_li > span:hover + ul li span {
  background: #eee;
  border: 1px solid #94a0b4;
  color: #000;
}

JavaScript

$(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();
  });
});
$(document).ready(function() {
    var toggle = function() {
        $(this).parent().children().toggle();
        $(this).toggle();
    };
    $(".Collapsable").click(toggle);
    $(".Collapsable").each(toggle);
    //$('li:has(> ul)').css("color","red");
});