@charset "utf-8";
  
.arrow_top {
  position: relative;
  padding-top: 80px;
}
.arrow_top:after {
  content: '';
  position: absolute;
  top: 25px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 35px solid transparent;
  border-right: 35px solid transparent;
  border-top: 35px solid #ccc;
  display: inline-block;
}
@media screen and (max-width: 640px) {
  section.contents_wrap {
    margin-top: 60px;
  }
}