Post Format: Gallery (Tiled)
This is a test for Jetpack's Tiled Gallery. Install Jetpack to test. [gallery type="rectangular" columns="4" ids="755,757,758,760,766,763" orderby="rand"] This is some text after the Tiled Gallery just to make sure that everything spaces nicely.
Post Format: Image (Caption)
[caption id="attachment_754" align="alignnone" width="604"] Bell on wharf in San Francisco[/caption]
Post Format: Video (VideoPress)
[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.