JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>This is a list item</li>
    <li>This is a list item</li>
</ul>

CSS

body {font-size: 75%;}
ul {padding: 0;}
li {list-style: none}
li:before {
  display:inline-block;
  vertical-align: top;
  line-height: 1em;
  width: 1em;
  height:1em;
  margin-right: 0.3em;
  text-align: center;
  content: '✔';
  color: #999;
}