.iframewrap-ggl {position: relative; padding-bottom: 65.25%; padding-top: 30px; height: 0; width:50%; max-width: 550px; overflow: hidden;}
.iframewrap-ggl iframe {position: absolute; top: 0; left: 0; width: 100%; height: 100%; max-height:400px;}
@media only screen and (min-width: 0px) and (max-width: 768px) {.iframewrap-ggl {width:100%; max-width:550px; margin-left:0; margin-right:auto; overflow: hidden;}}