var VideoRatio = function(w) {
    this.window = w;
}

VideoRatio.prototype.init = function() {
    var videos = this.window.document.querySelectorAll('.video-ratio');

    for (var i = 0, len = videos.length; i < len; i++) {
        videos[i].style.paddingBottom = videos[i].getAttribute('data-ratio');
    }
}

module.exports = VideoRatio