responsive youtube sidebar

// Find all YouTube videos var $allVideos = $("iframe[src^='//www.youtube.com']"),      // The element that is fluid width     $fluidEl = $("body");  // Figure out and save aspect ratio for each video $allVideos.each(function() {    $(this)     .data('aspectRatio', this.height / this.width)      // and remove the hard coded width/height     .removeAttr('height')     .removeAttr('width');  });  // When the window is resized $(window).resize(function() {    var newWidth = $fluidEl.width();    // Resize all videos according to their own aspect ratio   $allVideos.each(function() {      var $el = $(this);     $el       .width(newWidth)       .height(newWidth * $el.data('aspectRatio'));    });  // Kick off one resize to fix all videos on page load }).resize();