JSFiddle - React, Tailwind, and code Playground

by nhuon

HTML

<br>
<br>
<br>
<div class="box">
    <div class="arrow-up"></div>
  <ul>
    <li>FB</li>
    <li>TW</li>
    <li>G+</li>
  </ul>
</div>

CSS

.arrow-up
{
  position: absolute;
  top: -10px;
  left: 40px;
	width: 0; 
	height: 0; 
	border-left: 10px solid transparent;
	border-right: 10px solid transparent;
	border-bottom: 10px solid black;
}

.box
{
  position: relative;
  width: 100px;
  height: 100px;
  color: white;
  background-color: black;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;  
}