#contentbody {
  padding-top: 30px;
}
#contentbody #main-area #frameset {
  position: relative;
  width: 760px;
  height: 0;
  margin: auto;
  padding-top: 72%;
}
#contentbody #main-area #frameset iframe {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
}
@media screen and (max-width: 767px) {
  #contentbody {
    padding-top: 20px;
  }
  #contentbody #main-area {
    padding: 0 10px;
  }
  #contentbody #main-area #frameset {
    width: 100%;
    padding-top: 173rem;
  }
}