too long

My goal is to embed three YouTube videos next to each other using the YouTube shortcode as described by Wordress here. https://en.support.wordpress.com/videos/youtube/ Please see these images that show how where I am using the shortcode, the result I am seeing, and for the php I use to execute the shortcode. http://imgur.com/a/YX6pF

Shortcode (copy paste from support.wordpress.com)

[youtube https://www.youtube.com/watch?v=_Oh12ROTQCE ]

PHP

<?php
  if ( have_posts() ) {
    while ( have_posts() ) {
      the_post();
      do_shortcode(the_content());
      } // end while
    } // end if
    ?>