.rich-content {
  margin: 0 auto 35px;
}
.rich-content img {
  max-width: 100%;
}
.rich-content .pc {
  display: block !important;
}
.rich-content .sp {
  display: none !important;
}
@media only screen and (max-width: 780px) {
  .rich-content .pc {
    display: none !important;
  }
  .rich-content .sp {
    display: block !important;
  }
}