JSFiddle - React, Tailwind, and code Playground

by cristian_cena

HTML

<div id="padreRelativo">
<p id='back-top'><a href='#top'><span></span>Arriba</a></p>
<footer>
    <div class="container">
      <p>2012</p>
    </div>
</footer>
</div>

CSS

#padreRelativo{
    position:relative; 
    width: 150px; height:150px; background: yellow;
}
#back-top {
    position: absolute; top:50px; left:50px;
    z-index:1;  
    width: 100px; height:100px; background: green;
}
footer {
    position: relative; top:0; left:0;
    z-index:0;
    width: 100px; height:100px; background: red;
}