.mv-ttl_bestbook {
  padding: 0 20px;
  font-size: 22px;
  font-size: 2.2rem;
  line-height: 1;
  font-weight: 800;
  color: #003559;
  position: absolute;
  width: 100%;
  text-align: center;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  top: 50%;
}
.mv-ttl_bestbook img {
  width: 100%;
  max-width: 480px;
  height: auto;
  margin-bottom: 15px;
}
.mv-ttl_bestbook.mv-ttl_bestbook-2016 {
  color: #0f0f0f;
}
.mv-ttl_bestbook.mv-ttl_bestbook-2016 img {
  max-width: 480px;
  margin-bottom: 15px;
}
@media screen and (max-width: 990px) {
  .mv-ttl_bestbook {
    font-size: 18px;
    font-size: 1.8rem;
  }
  .mv-ttl_bestbook img {
    max-width: 360px;
    margin-bottom: 15px;
  }
  .mv-ttl_bestbook.mv-ttl_bestbook-2016 img {
    max-width: 360px;
    margin-bottom: 10px;
  }
}
@media screen and (max-width: 833px) {
  .mv-ttl_bestbook {
    font-size: 16px;
    font-size: 1.6rem;
  }
  .mv-ttl_bestbook img {
    max-width: 240px;
    margin-bottom: 10px;
  }
  .mv-ttl_bestbook.mv-ttl_bestbook-2016 img {
    max-width: 240px;
    margin-bottom: 5px;
  }
}