.container {  
  position:fixed; 
  top:0; 
  left:0; 
  bottom:0; 
  right:0; 
  width:100%; 
  height:100%; 
  border:none; 
  margin:0; 
  padding:0; 
  overflow:hidden; 
  z-index:999999;
}

.responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
  border: none;
}