JSFiddle - React, Tailwind, and code Playground
by il kamil
HTML
<div id="header">
<p>Header</p>
<p>Some text</p>
</div>
<div id="main">Content</div>
CSS
#header {
background:#333;
color:#FFF;
width:100%;
float:left;
text-align:center;
}
#main {
background:green;
color:#FFF;
width:100%;
float:left;
text-align:center;
}
JavaScript
var winHeight = $(window).height();
var headHeight = $("#header").height();
$("#main").height(winHeight-headHeight);