using 1px gif image

please look at this link
http://sudhakargolakaram.co.in/files/onepxgif.html

the idea is to have an image as a background however on top of this background i have a 1px X 1px gif image white in color

this gif image would repeat in x and y above the main background image so if i right click and select view background image i should see the gif image not the actual image which is as the background

i am not able to see the background image and when i right click i see the gif image

please advice how i can fix this

also is it possible to have a class for a div that has an id declared as i have mentioned in this page
<div id="container" class="test">

or is it not possible to have a class attribute for a div when an id is declared for that div

as there can be multiple classes decalred when using the class attribute is it possible to have a class attribute when a div has an id attribute

thanks