#hero-special-lecture {
  width: 100%;
  height: 426px;
  margin: 0;
  padding: 0;
  text-align: center;
  background-image: url('/quality_forum/hero/special_lecture/images/bg.png');
  background-position: center top;
  background-repeat: no-repeat;
  background-size: cover;
}

#hero-special-lecture-content {
  margin: 0 auto;
  padding-top: 50px;
  width: 1100px;
  height: calc(426px - 40px);
  text-align: left;
}

#hero-special-lecture-content img {
  width: 1100px;
}