JSFiddle - React, Tailwind, and code Playground

HTML

<header id='topBar'>
		<ul id='topMenu'>
			<a class='topMenuLinks' href='#'><li>Home</li></a>
			<a class='topMenuLinks' href='#'><li>Link 1</li></a>
			<a class='topMenuLinks' href='#'><li>Link 2</li></a>
		</ul>
	</header>
	<div id='mainBody'>
	</div>

CSS

#topBar
{
	position: fixed;
	top: 0px;
	left: 0px;
	display: block;
	height: 100px;
	width: 100%;
	max-width: 2500px;
	background: black;
	border-bottom: solid thick white;
}

#topMenu
{
	position: fixed;
	left: 100px;
	top: 35px;
}

#topMenu li
{
	list-style: none;
	float: left;
	padding-top: 20px;
	padding-right: 20px;
	padding-left: 20px;
	padding-bottom: 2px;
	font-size: 150%;
	color: white;
}

#topMenu li:hover
{
	background: white;
	color: black;
}
html, body {
    height: 100%;
}
body
{
	background: linear-gradient(white, rgb(221,221,221));
}