JSFiddle - React, Tailwind, and code Playground

HTML

<div class="schools_accordian">
<ul>
	<li class="block">
		<input type="checkbox" name="item" id="item1" />   
		<label for="item1">First</label>
		<ul class="options">
			<li><a href="#">Sub menu one</a></li>
			<li><a href="#">Sub menu two</a></li>
			<li><a href="#">Sub menu three</a></li>
		</ul>
	</li>
	
	<li class="block">
		<input type="checkbox" name="item" id="item3" />   
		<label for="item3">Second</label>
		<ul class="options">
			<li><a href="#">Sub menu one</a></li>
            <li><a href="#">Sub menu two</a></li>
            <li><a href="#">Sub menu three</a></li>
		</ul>
	</li>
</ul>
</div>

CSS

* {
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}
.schools_accordian{
    width: 100%;
}
ul {
	list-style:none;
	margin:0; 
	padding:0;
	width:100%;
	margin:0 auto;
	
}

ul li label {
	background: #575e63; /* fallback colour */
	border-top:1px solid #878e98;
	border-bottom:1px solid #33373d;
	color: #fff;
	text-shadow: 0 1px 1px #000;
	letter-spacing: 0.09em;
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#575e63), to(#3f4347));
	background: -webkit-linear-gradient(top, #575e63, #3f4347);
	background: -moz-linear-gradient(top, #575e63, #3f4347);
	background: -ms-linear-gradient(top, #575e63, #3f4347);
	background: -o-linear-gradient(top, #575e63, #3f4347);
}

ul li input[type='checkbox'] {
	display: none;
}

ul li label {
	display:block;
	padding:12px;
	width:100%;
}

ul li label:hover {
	background: #566f82; /* fallback colour */
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#566f82), to(#3e505e));
	background: -webkit-linear-gradient(top, #566f82, #3e505e);
	background: -moz-linear-gradient(top, #566f82, #3e505e);
	background: -ms-linear-gradient(top, #566f82, #3e505e);
	background: -o-linear-gradient(top, #566f82, #3e505e);
}

ul li input[type='checkbox']:checked ~ label {
	background: #44c6eb; /* fallback colour */
	border-top:1px solid #878e98;
	border-bottom:1px solid #2799db;
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#44c6eb), to(#2799db));
	background: -webkit-linear-gradient(top, #44c6eb, #2799db);
	background: -moz-linear-gradient(top, #44c6eb, #2799db);
	background: -ms-linear-gradient(top, #44c6eb, #2799db);
	background: -o-linear-gradient(top, #44c6eb, #2799db);
}

ul li input[type='checkbox']:checked ~ label span {
	background: #2173a1; /* fallback colour */
	border-top:1px solid #1b5f85;
	border-bottom:1px solid #4cb1e4;
	-moz-box-shadow: inset 0 0 5px #111;
	-webkit-box-shadow: inset 0 0 5px #111;
	box-shadow: inner 0 0 5px #111;
}

ul li...