JSFiddle - React, Tailwind, and code Playground

HTML

<div class="scroller"></div>

CSS

body { background: #eee; }

.scroller {
    width: 90%;
    margin: auto;
    height: 198px;
    border-radius: 1px/30px;
    border: 1px solid #777;
    box-shadow: 0 0 7px rgba(255,255,255,.8);
    overflow-y: scroll;
}