JSFiddle - React, Tailwind, and code Playground

HTML

<div class="panel-body">
                            <ul class="timeline">
                                <li>
                                    <div class="timeline-panel">
                                        <div class="timeline-heading">
                                            <h4 class="timeline-title">Timeline Event</h4>
                                            <p>
                                                <small class="text-muted"><i class="fa fa-time"></i> 11 hours ago via Twitter</small>
                                            </p>
                                        </div>
                                        <div class="timeline-body">
                                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin vel justo eu mi scelerisque vulputate. Aliquam in metus eu lectus aliquet egestas.</p>
                                        </div>
                                    </div>
                                </li>
                                <li class="timeline-inverted">
                                    <div class="timeline-panel">
                                        <div class="timeline-heading">
                                            <h4 class="timeline-title">Timeline Event</h4>
                                        </div>
                                        <div class="timeline-body">
                                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin vel justo eu mi scelerisque vulputate. Aliquam in metus eu lectus aliquet egestas.</p>
                                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin vel justo eu mi scelerisque vulputate. Aliquam in metus eu lectus aliquet egestas.</p>
                                        </div>
                                    </div>
                                </li>
                                <li>
                       ...

CSS

.timeline {
    position: relative;
    padding: 20px 0 20px;
    list-style: none;
}

.timeline:before {
    content: " ";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 3px;
    margin-left: -1.5px;
    background-color: #eeeeee;
}

.timeline > li {
    position: relative;
    margin-bottom: 20px;
}

.timeline > li:before,
.timeline > li:after {
    content: " ";
    display: table;
}

.timeline > li:after {
    clear: both;
}

.timeline > li:before,
.timeline > li:after {
    content: " ";
    display: table;
}

.timeline > li:after {
    clear: both;
}

.timeline > li > .timeline-panel {
    float: left;
    position: relative;
    width: 36%;
    padding: 20px;
    border: 1px solid #d4d4d4;
    border-radius: 2px;
    -webkit-box-shadow: 0 1px 6px rgba(0,0,0,0.175);
    box-shadow: 0 1px 6px rgba(0,0,0,0.175);
}

.timeline > li > .timeline-panel:before {
    content: " ";
    display: inline-block;
    position: absolute;
    top: 26px;
    right: -15px;
    border-top: 15px solid transparent;
    border-right: 0 solid #ccc;
    border-bottom: 15px solid transparent;
    border-left: 15px solid #ccc;
}

.timeline > li > .timeline-panel:after {
    content: " ";
    display: inline-block;
    position: absolute;
    top: 27px;
    right: -14px;
    border-top: 14px solid transparent;
    border-right: 0 solid #fff;
    border-bottom: 14px solid transparent;
    border-left: 14px solid #fff;
}

.timeline > li > .timeline-badge {
    z-index: 100;
    position: absolute;
    top: 16px;
    left: 50%;
    width: 50px;
    height: 50px;
    margin-left: -25px;
    border-radius: 50% 50% 50% 50%;
    text-align: center;
    font-size: 1.4em;
    line-height: 50px;
    color: #fff;
    background-color: #999999;
}

.timeline > li.timeline-inverted > .timeline-panel {
    float: right;
}

.timeline > li.timeline-inverted > .timeline-panel:before {
    right: auto;
    left: -15px;
    border-right-width: 15px;
    border-left-width:...