User blog comment:Sarah Manley/Wikia's 1st Hack-a-thon/@comment-93604-20110319051733

See: Portal:Video shrinkage problems. Here are the 2 methods for embedding a Youtube video on Wikia. '''Click and start playing both of the videos below. The top one shrinks greatly in width, the other one does not shrink in width.''' Until relatively recently both did not shrink. See also Help Talk:Video embed tool, and this screenshot:
 * File:Embedded Youtube video width during play.jpg

Cab Calloway - Reefer Man. In the 1933 film, International House. Check out the hair action! YouTube link. Lyrics. "Why, that cat's still high."

Wikia Video:

300px

Wiki-code for above 300-pixel-wide video:  300px 

Youtube tag:

D44pyeEvhcQ

Wiki-code for above 300-pixel-wide video:  D44pyeEvhcQ 

Note that the video just above does not shrink in width when clicked and it is playing.

I may have to convert all the videos on the Cannabis Wiki to this old embedding format in order to fix the shrinkage problem of postage-stamp size videos. The old format is very unwieldy though for captions, etc..