How to make youtube video responsive ?

<style>
.videoResponsive {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 100%;
}
 
.videoResponsive iframe,
.videoResponsive object,
.videoResponsive embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
</style>
<div class="videoResponsive">
	<iframe width="560" height="315" src="https://www.youtube.com/embed/8A6dW264sXM?rel=0&amp;showinfo=0" frameborder="0" allowfullscreen></iframe>
</div>