JSFiddle - React, Tailwind, and code Playground
HTML
<a id="clk" href="#">click</a>
<div id="hi">
<a href="#" id="close">close</a>
</div>
CSS
body {
height:1000px;
}
#hi {
display:none;
z-index:1000;
background:red;
height:200px;
width:200px;
}
JavaScript
$("#clk").click(function () {
$('body').css('overflow','hidden');
$("#hi").css("display","block");
});
$("#close").click(function () {
$('body').css('overflow','auto');
$("#hi").css("display","none");
});