JSFiddle - React, Tailwind, and code Playground

by NicoO

HTML

<div class="outer">
   <div class="inner"></div>
</div>

CSS

.outer
{
    position: relative; 
    width: 300px; 
    height: 100px; 
    background: rgba(0,0,0, 0.7);
}

.inner
{
    position: absolute;
    width: 30px;
    height: 30px; 
    border-radius: 30px;
    top: 10px; 
    left: 10px;
}