How Can I find page ID# for frontpage

I've added small images to the top of each static page center column above the content, putting into the ATO css inserts:

/*About Me */
body.page-id-6297 td#middle {
background: url(http://lilveggiepatch.com/wp-content...s/broccoli.jpg) no-repeat top left;
}

I added top padding to the center column to make room for the image.
But I can't find a page ID# for the frontpage(posts page), so I can't refer to it in the css.
URL is: http://lilveggiepatch.com/

I'd appreciate any help.