JSFiddle - React, Tailwind, and code Playground

HTML

<div class="toc">test</div>

CSS

.toc {
    -moz-background-clip:border;
    -moz-background-inline-policy:continuous;
    -moz-background-origin:padding;
    background:transparent none repeat scroll 0 0;
    border:black 1px solid;
    color:black;
    max-height:50%;
    max-width:25%;
    overflow:auto;
    padding:10px 10px 10px 0;
    position:fixed;
    right:20px;
    top:40px;
}