How do you slice a html area with a transparent background?

I've created a webpage layout in adobe illustrator. I've sliced it up and am using the ';save for web'; to get an html document.

Some of the slices are set to html. The problem is the html slices have white backgrounds.

Is there any way to get these html slices to show the image layout like the other slices?How do you slice a html area with a transparent background?
Edit your HTML Code on Textpad or something. The thing is, anout 80 percent of the time, people mess up the code and just make sure you typed it right. To change the color, just do { %26lt;bg color='; The Color Code here inside the Quotations';%26gt;}

NOTE: Dont Type in the Flower Bracket