JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
        <header></header>
        <nav></nav>
        
        <div class="wrContent">
            <aside class="sidebarLeft"></aside>
            <article></article>
            <aside class="sidebarRight"></aside>
        </div>
        
        <footer>
            <div class="copyright"></div>
        </footer>
    </div>

CSS

body {
	margin: 0;
	padding: 0;
}

.wrapper {
	outline: 1px solid #C00;
	width: 980px;
	margin: 0 auto;
}

header {
	outline: 1px solid #C00;
	height: 180px;
}

nav {
	outline: 1px solid #C00;
	height: 25px;
}

.wrContent {
	position: relative;
	padding: 35px 0	60px;
	outline: 1px solid #000;
}

aside, article {
	position: absolute;
}

.sidebarLeft {
	outline: 1px solid #C00;
	width: 210px;
	height: 520px;
}

article {
	outline: 1px solid #C00;
	width: 520px;
	height: 520px;
	left: 235px; 
}

.sidebarRight {
	outline: 1px solid #C00;
	width: 200px;
	height: 520px;
	right: 0;
}

footer {
	outline: 1px solid #C00;
	height: 85px;
}