.trailer_player {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
}

.trailer_player embed, .trailer_player iframe, .trailer_player object {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}