JSFiddle - React, Tailwind, and code Playground

by Renilson Meneguci

HTML

<!-- We will create a family tree using just CSS(3) The markup will be simple nested lists -->
<div class="tree">
    <ul>
        <li>	<a href="#">Parent</a>
            <ul>
                <li>	<a href="#">Child</a>

                    <ul>
                        <li>	<a href="#">Grand Child</a>

                        </li>
                    </ul>
                </li>
                <li>	<a href="#">Child</a>

                    <ul>
                        <li><a href="#">Grand Child</a>
                        </li>
                        <li>	<a href="#">Grand Child</a>

                            <ul>
                                <li>	<a href="#">Great Grand Child</a>

                                </li>
                                <li>	<a href="#">Great Grand Child</a>

                                </li>
                                <li>	<a href="#">Great Grand Child</a>

                                </li>
                            </ul>
                        </li>
                        <li><a href="#">Grand Child</a>
                        </li>
                    </ul>
                </li>
            </ul>
        </li>
    </ul>
</div>

CSS

.tree li {
    margin: 0px 0;
    list-style-type: none;
    position: relative;
    padding: 20px 5px 0px 5px;
}
.tree li::before {
    content:'';
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    right: auto;
    left: -20px;
    border-left: 1px solid #ccc;
    bottom: 50px;
}
.tree li::after {
    content:'';
    position: absolute;
    top: 30px;
    width: 25px;
    height: 20px;
    right: auto;
    left: -20px;
    border-top: 1px solid #ccc;
}
.tree li a {
    display: inline-block;
    border: 1px solid #ccc;
    padding: 5px 10px;
    text-decoration: none;
    color: #666;
    font-family: arial, verdana, tahoma;
    font-size: 11px;
    border-radius: 5px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
}
/*Remove connectors before root*/
 .tree > ul > li::before, .tree > ul > li::after {
    border: 0;
}
/*Remove connectors after last child*/
 .tree li:last-child::before {
    height: 30px;
}
/*Time for some hover effects*/

/*We will apply the hover effect the the lineage of the element also*/
 .tree li a:hover, .tree li a:hover+ul li a {
    background: #c8e4f8;
    color: #000;
    border: 1px solid #94a0b4;
}
/*Connector styles on hover*/
 .tree li a:hover+ul li::after, .tree li a:hover+ul li::before, .tree li a:hover+ul::before, .tree li a:hover+ul ul::before {
    border-color: #94a0b4;
}

JavaScript

$(function () {
    $('.tree li').hide();
    $('.tree li:first').show();
    $('.tree li').on('click', function (e) {
        var children = $(this).find('> ul > li');
        if (children.is(":visible")) children.hide('fast');
        else children.show('fast');
        e.stopPropagation();
    });
});