How To Make YouTube Video Responsive in WordPress
Update custom style sheet or theme css with the following:
.youtube-responsive-container {
position:relative;
padding-bottom:56.25%;
padding-top:30px;
height:0;
overflow:hidden;
}
.youtube-responsive-container iframe, .youtube-responsive-container object, .youtube-responsive-container embed {
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
}
Wrap video in div with class of “Youtube-Responsive-Container”
