JSFiddle - React, Tailwind, and code Playground
HTML
<div id="div1">this divs height is equal to the viewport height</div>
<div id="div2">this divs height is equal to the viewport height</div>
CSS
div{
background:orange;
height:80px; /* a default height */
margin-bottom:20px;
}
JavaScript
$(document).ready(function(){
$("div").each(function(i,v){
$(this).css("height",$(window).height() + "px");
});
});