To scale a YouTube video to fit any browser or tablet/mobile device for responsive design you can use either a CSS or Javascript solution to accomplish the goal.
This example uses a CSS solution, you need to add a couple of CSS styles in your main CSS file.
Here is what a typical YouTube embed code looks like, with fixed width and height:
<iframe width="560" height="315" src="https://www.youtube.com/embed/39d3LKeLfHQ"
frameborder="0" allowfullscreen></iframe>It would be nice if we could just give it a 100% width, but it won’t work as the height remains fixed. What you need to do is wrap it in a container like so (note the class names and removal of the width and height):
<div class="container">
<iframe src="https://www.youtube.com/embed/39d3LKeLfHQ"
frameborder="0" allowfullscreen class="video"></iframe>
</div>And use the following CSS:
.container {
position: relative;
width: 100%;
height: 0;
padding-bottom: 56.25%;
}
.video {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}How this works: The container element is given a zero height and a percentage bottom padding. The percentage bottom padding is a percentage of the container width, so that gives it a fixed aspect ratio. But in order to get the iframe to show up inside the zero-height container, you need to make the container relative and the iframe absolute, positioned inside the div.
