JSFiddle - React, Tailwind, and code Playground
HTML
<div class="content">
</div>
CSS
body {
background-image: url('http://assignpal.com/wp-content/uploads/2014/02/sample_b.jpg');
}
.content{
height: 1000px;
}
JavaScript
$(window).on('scroll touchmove', function(e) {
var newposition = ($(document).scrollTop() * 2.4);
$('body').css('background-position', '0px ' + newposition + 'px');
});