JSFiddle - React, Tailwind, and code Playground

by operatino

HTML

<div class="test"></div>

CSS

.test {
    height: 0;
    width: 0;
    font: 0/0 Arial;
    border-top:  50px solid #000;
    border-left: 2px solid #fff;
    border-right:  2px solid #fff;
}