JSFiddle - React, Tailwind, and code Playground

HTML

<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>
<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>
<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>

    <div class="clr"></div>
<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>
<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>
<div class="thumbnail">
<img src="images/image.gif" alt="" width="60" height="60"><br>
Caption
</div>

CSS

.thumbnail
{
float: left;
width: 60px;
border: 1px solid #999;
margin: 0 15px 15px 0;
}
.clr{clear:both;}