<div class="css-accordion ac-plus">
<input type="checkbox" id="faq001" class="ac-hidden"> // id名は項目ごとに一意
<label for="faq001" class="ac-open"><span>Q</span>□□□□□□ □□□□□□ですか。</label>
<label for="faq001" class="ac-close"><span>A</span>
<p>□□□□□□□□□□□□□□□□ □□□□□□□□です。</p>
</label>
</div>
/*====================================================
* Accordion CSS ver.
====================================================*/
.css-accordion {
width: 100%;
}
.css-accordion label:hover{
opacity: .6;
}
.css-accordion .ac-hidden {
display: none;
}
.css-accordion .ac-open {
display: block;
position: relative;
line-height:1.5;
margin: 2px 0;
padding: 1rem 5rem 1rem 6rem;
cursor: pointer;
background: #f8f3e6;
}
.css-accordion .ac-close {
display: block;
position: relative;
left: 0;
line-height:1.3;
padding: 0 0 0 6rem;
height: 0;
overflow: hidden;
opacity: 0;
transition: 0.5s;
}
.css-accordion .ac-hidden:checked + .ac-open + .ac-close {
opacity: 1;
margin-bottom: 2rem;
padding: 1rem 1rem 1rem 6rem ;
height: auto;
background: #f5f5f5;
}
.css-accordion .ac-open span:nth-child(1),
.css-accordion .ac-close span:nth-child(1) {
position: absolute;
left: 0;
top: 0;
display: flex;
justify-content: center;
align-items: center;
width: 5rem;
height: 100%;
text-align: center;
color: #fff;
}
.css-accordion .ac-open span:nth-child(1) {
background: #ee7836;
}
.css-accordion .ac-close span:nth-child(1) {
background: #ccc;
}
/*-- Mark [+] --*/
.css-accordion.ac-plus .ac-open::before,
.css-accordion.ac-plus .ac-open::after {
position: absolute;
top: 50%;
right: 3%;
content: '';
width: 20px;
height: 2px;
background: #000;
transform: translateY(-50%);
}
.css-accordion.ac-plus .ac-open::after {
transform: translateY(-50%) rotate(90deg);
transition: .5s;
}
.css-accordion.ac-plus .ac-hidden:checked + .ac-open:after {
transform: translateY(-50%) rotate(0);
}