ClassOwl watch video (slightly edited)

main.js

//$videoContent, $videoOverlay initialized elsewhere...
var watchVideo = function(e) {
  e.preventDefault();
  var container = $('.video-container');
  $('html, body').animate({
    scrollTop: parseInt(container.offset().top, 10)
  }, function() {
    playVideo(e);
  });
  return false;
},
    playVideo = function(e) {
  e.preventDefault();
  $videoOverlay.show(100);
  $videoContent.addClass('shown');
  $videoContent.show(400, function() {
    if (player.playVideo) {
      player.setPlaybackQuality('hd720');
      player.playVideo();
    }
  });
  return false;
};
$(document).ready(function() {
  $('#watch-video').on('click', watchVideo);
});