JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <div style="width:200px;height:200px;margin:20px">
</div>

CSS

div {
    width:400px;
    height:500px;
    border-style:solid;
    border-width:5px;
    border-left-color:red;
    -moz-border-left-color:red;
}