JSFiddle - React, Tailwind, and code Playground

HTML

<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<div class="block">
    <i class="material-icons" style="color:green">check_circle</i>
</div>

CSS

.block {
  width: 100px;
  height: 100px;
  background: grey;
}