#topics h2 {
  font-size: 20px;
  margin-top: 1.8rem;
  text-align: center; }
  @media screen and (max-width: 720px) {
    #topics h2 {
      margin-top: 0; } }

.banner_area {
  display: block;
  max-width: -webkit-max-content;
  max-width: -moz-max-content;
  max-width: max-content;
  margin: 1.2rem auto;
  overflow: hidden; }
  @media screen and (max-width: 720px) {
    .banner_area {
      margin: 0.5rem auto;
      width: 90%; } }
  .banner_area img {
    width: 100%; }