[wpvideo tFnqC9XQ w=680]
VideoPress, especially as a video post format, usually provides some unique styling issues.
You will need to install Jetpack or Slim Jetpack plugin to turn the shortcode into a viewable video.
Michael Hanley's blog about e-learning, web-based elearning, blended learning, technology in education, e-learning tools, learning 3.0, & continuous professional development.