jQuery アコーディオン

<style>
pannel {
	width:500px;
}
#pannel > dt {
	border-bottom: solid 1px white;
	background-color: #00BCD4;
	color: white;
	cursor: pointer;
	padding: 10px;
	font-weight: bold;	
}
#pannel > dd {
	border: solid 1px Sliver;
	margin: 0px;
	padding: 10px;
}

</style>
<dl id="pannel">
	<dt>Real-Time</dt>
	<dd>active users on site</dd>
	<dt>Audience</dt>
	<dd>Users, New Users, Sessions</dd>
	<dt>Acquision</dt>
	<dd>Oorganic Search</dd>
</dl>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script>
$(function(){
	$('#pannel > dd').hide();
	$('#pannel > dt')
		.click(function(e){
			$('+dd', this).slideToggle(100);
		})
});
</script>