<div class="cp_qa">
<div class="cp_actab">
<input id="cp_tabfour011" type="checkbox" name="tabs">
<label for="cp_tabfour011">質問テキスト</label>
	<div class="cp_actab-content">
	<p>答えテキスト</p>
	</div>
</div>
<div class="cp_actab">
<input id="cp_tabfour012" type="checkbox" name="tabs">
<label for="cp_tabfour012">質問テキスト</label>
	<div class="cp_actab-content">
	<p>答えテキスト</p>
	</div>
</div>
<div class="cp_actab">
<input id="cp_tabfour013" type="checkbox" name="tabs">
<label for="cp_tabfour013">質問テキスト</label>
	<div class="cp_actab-content">
	<p>答えテキスト</p>
	</div>
</div>
</div>

.cp_qa *, .cp_qa *:after, .cp_qa *:before {
	-webkit-box-sizing: border-box;
	        box-sizing: border-box;
}
.cp_qa {
	border-top: 1px solid #1b2538;
}
.cp_qa .cp_actab {
	position: relative;
	overflow: hidden;
	width: 100%;
	margin-bottom: 1px;
	color: #1b2538;
}
.cp_qa .cp_actab input {
	position: absolute;
	opacity: 0;
}
/* 質問 */
.cp_qa .cp_actab label {
	font-weight: bold;
	line-height: 1.6;
	position: relative;
	display: block;
	margin: 0 0 0 0;
	padding: 1em 2em 1em 1em;
	cursor: pointer;
	border-bottom: 1px solid #1b2538;
}
.cp_qa .cp_actab label:hover {
	color: #00838F;
}
/* 答え */
.cp_qa .cp_actab .cp_actab-content {
	overflow: hidden;
	max-height: 0;
	-webkit-transition: max-height 0.5s ease;
	        transition: max-height 0.5s ease;
	color: #ffffff;
	background: rgba(0, 131, 143, 0.5);
}
.cp_qa .cp_actab .cp_actab-content p {
	margin: 1em;
}
/* 質問を開いた時の仕様 */
/* --アイコン */
.cp_qa .cp_actab input:checked ~ label {
	color: #00838F;
}
/* --答えの高さ */
.cp_qa .cp_actab input:checked ~ .cp_actab-content {
	max-height: 40em;
}
/* 質問をクリックした時のアイコンの動き */
.cp_qa .cp_actab label::after {
	line-height: 1.6;
	position: absolute;
	top: 50%;
	right: 0;
	display: block;
	width: 3em;
	margin-top: -12.5px;
	-webkit-transition: all 0.5s ease;
	        transition: all 0.5s ease;
	text-align: center;
}
.cp_qa .cp_actab input[type=checkbox] + label::after {
	content: 'BC';
}
.cp_qa .cp_actab input[type=checkbox]:checked + label::after {
	-webkit-transform: rotateX(180deg);
	transform: rotateX(180deg);
}