JSFiddle - React, Tailwind, and code Playground
by OwenMelbz
HTML
<html>
<head>
</head>
<body>
<div id="stuff"></div>
</body>
</html>
CSS
#stuff {
height:50px;
background-color:lime;
}body {margin-top:-20px; padding-top:15px;}
#scl {
width:100%;
height:30px;
background-color: red;
z-index:99999;
}
JavaScript
$(function(){
var bodymargin = parseInt($('body').css('margin-top'));
var bodypadding = parseInt($('body').css('padding-top'));
var cookiehtml = '<div id="scl">cookie law</div>';
$('body').prepend(cookiehtml).css({'margin-top':0, 'padding-top':0});
$('#scl').css('margin-bottom', bodypadding+bodymargin);
console.log(bodymargin, bodypadding);
});