HTML5 is giving web designers and developers new capabilities that were things of fantasy with previous versions of HTML. Web pages will now be more semantic with the use of structure specific tags.
Here is the link where u know about how to design a simple sleek template based on HTML 5 and CSS 3
http://www.smashingmagazine.com/2009/08/04/designing-a-html-5-layout-from-scratch/
