JSFiddle - React, Tailwind, and code Playground

by Koubenec

HTML

<div id="shadowbar"></div>

CSS

#shadowbar {
    width: 1080px;
    height: 4px;
    background-color: red;
    opacity: 0.7;
    position: absolute;
    z-index: 9999;
    top: 0px;
}