JSFiddle - React, Tailwind, and code Playground

by anoopsuda

HTML

<div class="triangle-left"></div>

CSS

.triangle-left {
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-right: 10px solid black; /* change color here */
}