video#remote {
    width: 480px;
    height: 360px;
    background: #777;
}
video#local {
    position: absolute;
    width: 160px;
    height: 120px;
    background: #555;
    margin-top: 240px;
    margin-left: -160px;
}
footer {
    background: #222;
    color: #ccc;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
}