Video without thumbnail

This is a video without a thumbnail:

This is the original code: <iframe allowfullscreen="" frameborder="0" height="315" src="http://www.youtube.com/embed/r05gjLfDX2E" width="560"></iframe>



This the thumbnail for the video.

This is the code for the thumbnail: <img src="http://i3.ytimg.com/vi/r05gjLfDX2E/mqdefault.jpg" style="display: none;" />