You could try having the same div name and applying an id to a paragraph within it - that website looks like a series of divs or a tabular format.
So you could have:
<div id="anyname">
<p id="color1">content goes here</p>
<p id="color2">content goes here</p>
<p id="color1">content goes here</p>
<p id="color2">content goes here</p>
</div>
then for the css:
#color1 {
background-color:#000;
color:#fff;
}
#color2 {
background-color:#fff;
color:#000;
}
This would basically give you a black background with white writing, then a white background with black writing.
You might need to specify the height and width etc. of each paragraph to get what you are after.
Hope that helps :0)