div#rider div.rider {
  padding: 4rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-bottom: 1px solid #ccc;
}
@media only screen and (max-width: 740px) {
  div#rider div.rider {
    flex-wrap: wrap;
  }
}
div#rider div.rider div.rider-photo {
  width: 50%;
}
@media only screen and (max-width: 740px) {
  div#rider div.rider div.rider-photo {
    width: 100%;
  }
}
div#rider div.rider div.rider-photo img {
  width: 100%;
}
div#rider div.rider ul.rider-info {
  width: 50%;
  padding: 2rem 4rem;
}
@media only screen and (max-width: 740px) {
  div#rider div.rider ul.rider-info {
    width: 100%;
  }
}
div#rider div.rider ul.rider-info h2.rider-name {
  font-size: 4rem;
  margin-bottom: 1rem;
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
}
div#rider div.rider ul.rider-info li {
  padding: 0.4rem 0;
  font-size: 1.2rem;
  line-height: 1.4;
}
div#rider div.rider ul.rider-info ul.skater_photos {
  display: flex;
}
div#rider div.rider ul.rider-info ul.skater_photos li {
  width: 20%;
}
div#rider div.rider ul.rider-info ul.skater_photos li img {
  width: 100%;
  filter: grayscale(100%);
}