JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<h1>Fonts</h1>
<div id="selectionBox"></div>
<div id="whatFontHead">Change Font</div>
<div id="whatFont">
	<p id="to-os">Open Sans</p>
	<p id="to-vd">Verdana</p>
	<p id="to-sl">Slabo</p>
	<p id="to-cg">Courgette</p>
</div>

CSS

#whatFontHead {
	width: 200px;
	height: 55px;
	line-height: 55px;
	background-color: #0099FF;
	text-align: center;
	-webkit-border-top-left-radius:22px;
	-moz-border-radius-topleft:22px;
	border-top-left-radius:22px;
	-webkit-border-top-right-radius:22px;
	-moz-border-radius-topright:22px;
	border-top-right-radius:22px;
	margin-bottom: -0;
}
#whatFont {
	width: 200px;
	height: 400px;
	background-color: #0099FF;
	text-align: center;
	margin-top: 0;
	display: none;
}

#whatFont p:first-child {
    margin-top: 0;
    padding-top: 15px;
}

JavaScript

$( document ).ready(function() {
    $( "#whatFontHead" ).click(function() {
        $( "#whatFont" ).slideToggle();
    });
});