<div class="acor-container"> 
	
	<input type="radio" name="acor" id="acor1" checked="checked" />
	<label for="acor1">Заголовок вкладки</label>
	<div class="acor-body">
		<p>Описание вкладки</p>
	</div>
	
	<input type="radio" name="acor" id="acor2" />
	<label for="acor2">Заголовок вкладки</label>
	<div class="acor-body">
		<p>Описание вкладки</p>
	</div>
	
	<input type="radio" name="acor" id="acor3" />
	<label for="acor3">Заголовок вкладки</label>
	<div class="acor-body">
		<p>Описание вкладки</p>
	</div> 
	
</div>

.acor-container {
	margin: 20px 0;
}
.acor-container .acor-body {
	width: calc(100% - 40px);
	margin: 0 auto;
	height: 0;
	color: rgba(0, 0, 0, 0);
	background-color: #f1f2f3;
	line-height: 18px;
	padding: 0 30px;
	box-sizing: border-box;
	transition: color 0.5s, padding 0.5s;
	overflow: hidden;
	font-family: Verdana, sans-serif; 
	font-size: 16px;
	box-shadow: 0 4px 8px rgba(0,0,0,0.2), 0 10px 16px rgba(0,0,0,0.2);
}
.acor-container .acor-body p {
	margin: 0 0 10px;
}
.acor-container label {
	cursor: pointer;
	background-color: #ffc451;
	display: block;
	padding: 15px 20px;
	width: 100%;
	color: #f1f2f3;
	font-weight: 300;
	box-sizing: border-box;
	z-index: 100;
	font-family: Verdana, sans-serif;   
	font-size: 18px;
	margin: 0 0 5px;
	transition: color .35s;
}
.acor-container label:hover {
    color: #FFF;
}
.acor-container input{
	display: none;
}
.acor-container label:before {
	content: '\276F';
	float: right;
}
.acor-container input:checked + label {
	background-color: #ffc451;
    color: #FFF;
	box-shadow: 0 8px 26px rgba(0,0,0,0.4), 0 28px 30px rgba(0,0,0,0.3);
}
.acor-container input:checked + label:before {
    transition: transform .35s;
    transform: rotate(90deg);
}
.acor-container input:checked + label + .acor-body {
	height: auto;
	margin-top: -5px;
	color: #000;
	padding: 20px 30px 10px;
}