JSFiddle - React, Tailwind, and code Playground

by Ting-Yuan Chang

HTML

<div class="tri">
</div>

CSS

.tri {
  border: 45px solid transparent;
  border-bottom: 0px;
  border-right-color: red;
  border-left-color: blue;
  border-left-color: black;
  position: absolute;
}