#doctordv {
  margin-left: 17%; 
  margin-right: 16%;
  margin-top: 6.2%;
  
}

iframe{height:304px; width: 99%}

@media screen and (max-width:600px) {
  #doctordv{padding-top: 8%;}
  #doctordv{font-size: 80%;}
  .main {font-size: 80%;}

}