$(function(){
  var _video = document.querySelector('#detail_video')
  var $video = $('.video')
  $video.on('click', '.button', function(){
    if(_video.paused){
      _video.play()
      $video.addClass('pause')
    }else{
      _video.pause()
      $video.removeClass('pause')
    }
  })
  $(_video).on('pause', function(){
    $video.removeClass('pause')
  })
  $(_video).on('play', function(){
    $video.addClass('pause')
  })
})