JSFiddle - React, Tailwind, and code Playground

HTML

<a id = 'emailoff' href = "" target = "_blank">
			<div id= "btn1">
				<h2 id = "enter">Send Email</h2>
			</div>
		</a>

CSS

#btn1 {
	background-color: black;
	width: 100px;
	height: 100px;

JavaScript

$('#btn1').click(function(){
				$("#emailoff").attr("href", "mailto:" +
									"?subject=Your ThinOptics glasses" +
									"&body=To get your new ThinOptics glasses simply click this link and pick the case and color you like best.  You'll get  free shipping on your order. \n"+
									" WWw.Thinoptics.Com/[email protected] \n" +
									"\n Enjoy")
			});