html {
  width: 100%;
  height: 100%;
}

body {
  width: 100%;
  height: 100%;
  margin: 0;
}

iframe {
  width: 100%;
  height: 100%;
  border-width: 0;
}

@media only screen and (min-width: 760px) {
  #mobile-frame {display: none; }
}