.accordion-container {
  position: relative;
  width: 100%;
  border: 1px solid #f7f7f7;
  border-top: none;
  outline: 0;
  cursor: pointer
}

.accordion-container .article-title {
  display: block;
  position: relative;
  margin: 0;
  padding: 0.625em 0.625em 0.625em 2em;
  font-size: 1.25em;
  font-weight: normal;
  color: #555555;
  background: #f7f7f7;
  cursor: pointer;
}

.accordion-container .article-title:hover,
.accordion-container .article-title:active,
.accordion-container .content-entry.open .article-title {
  background-color: #cccccc;
  color:#555555;
}

.accordion-container .article-title:hover i:before,
.accordion-container .article-title:hover i:active,
.accordion-container .content-entry.open i {
  color: white;
}

.article-title{
  position: relative;
}

.article-title:after {
  content: "";
  position: absolute;
  right: 25px;
  top: 38%;
  transition: all 0.2s ease-in-out;
  display: block;
  width: 8px;
  height: 8px;
  border-top: solid 2px #888888;
  border-right: solid 2px #888888;
  -webkit-transform: rotate(135deg);
  transform: rotate(135deg);
}

.article-title.open:after {
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  top: 45%;
  border-top: solid 2px #555555;
  border-right: solid 2px #555555;   
}

.accordion-content {
  display: none;
  padding-left: 2.3125em;
}

/* CSS for CodePen */
.accordion-container {
  width:100%;
/*  margin: 1.875em auto;*/
}


h4.accordion_title{
  margin: 0;
  padding: 0.625em 0.625em 0.625em 2em;
  font-size: 1.25em;
  font-weight: normal;
  color: #555555;
  background: #f7f7f7;
  }






/*（簡易アコーディオン）label*/

.feature_menu {
  width: 100%;
  margin: 1px auto;
}


label {

  display: block;
  cursor: pointer;

}

label img{
margin-bottom:3px;


}


input[type="checkbox"].on-off{
  display: none;
}

.feature_menu ul {
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -o-transition: all 0.5s;
  transition: all 0.5s;
  padding: 0;
  list-style: none;
  overflow: hidden;
  display:inline-block;
}

.feature_menu li {
  width:100%;
  float:left;
  display:inline-block;
  
  
}

.feature_menu ul img{
width:100%;
display:inline-block;
}

.feature_menu li img{
width:100%;
display:inline-block;
}

input[type="checkbox"].on-off + ul{
  display: none;
}

input[type="checkbox"].on-off:checked + ul{
  display: block;
  height:auto;
}