.content_icon {
  height: 28px;
  display: flex;
  float: right;
  margin: 30px 0 30px 30px;
  width: 35px;
}
#header-nav-area.fixed{
  position: fixed;
  z-index: 100;
  top: 0;
  width: 100%;
}

.content_icon img,
.footer_icon img{
  width: 100%;
  height: auto;
}

.sp-only {
  display: none;
}
.footer_icon{
  width: 30px;
  display: block;
  margin: 30px auto auto;
}
.flex-box{
  align-items: inherit;
}
.box-txt{
  margin: 2px 8px 0;
}

.wrap-3 .box{
  height: auto;
  padding-bottom: 15px;
}
header .content{
  overflow: hidden;
}


@media screen and (max-width: 768px) {
  .sp-only {
    display: block;
  }
  .content_icon {
    display:inline-flex;
    position: fixed;
    bottom: 10px;
  }

  .content_icon img{
    height: 100%;
    width: auto;
  }
  .pc-only {
    display: none;
  }


}