I am trying to create a site for a wedding photographer in which each picture on the home page is a separate post and each image has a rollover (from black and white to color). I seem to be having trouble getting this to work. I have been able to get the post setup and the image in place where I want it, but when I add the CSS hover for the rollover, the rollover does not occur. Is this just something I cannot do in a post? (I'm still a little new to wordpress, but the client would like to be able to update the site themselves).