I have created a new css file and inserted it into the bottom of my template just before the </body> tag.  I'm trying to specify that videos loaded in a specific module position to be resized smaller to fit. I currently have this in the css file:

#leftcol .allvideos object,
#leftcol .allvideos embed {
  width:152px;
  height:38px;
}

It does absolutely nothing. I've tried a few different things, but have no luck. PLEASE give me some help here! Thanks.