How can I make the YouTube player scale to the width of the page but also keep the aspect ratio?

Question

I have a YouTube video I want to put on my web page.

I want to scale the video to fit to a percent of the users browser but also to keep the aspect ratio.

I hav

Answer 1

In addition to Darwin and Todd the following solution will

1. avoid the bottom margin
2. maximize the width for large screens
3. minimize the height in mobile view
4. keep a fixed size for @media none compatible browsers

The HTML:

The CSS:

.videoplayer{

    text-align: center;
    vertical-align: middle;

    background-color:#000000;

    margin: 0;
    padding: 0;

    width: 100%;
    height:420px;

    overflow:hidden;

    top: 0;
    bottom: 0;

}

.auto-resizable-iframe {
    width:100%;
    max-width:100%;
    margin: 0px auto;
}

.auto-resizable-iframe > div {
    position: relative;
    padding-bottom:420px;
    height: 0px;
}

.auto-resizable-iframe iframe {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
}


//full screen
@media (min-width:0px) {

    .videoplayer{
        height:100%;
    }

    .auto-resizable-iframe > div {
        padding-bottom:100%;
    }           

}

//mobile/pad view
@media (min-width:600px) {

    .videoplayer{
        height:420px;
    }

    .auto-resizable-iframe > div {
        padding-bottom:420px;
    }       

}