Depends which way you want to go about it... HTML is the more versatile way of doing it and because of the way you can manipulate it yields better results. However, you would need a somewhat intimate knowledge of the language to code a whole Web Site/Web Page with it.
Therefore, the way your going to want to go about it is using a WYSIWYG (What You See Is What You Get) Editor. There are numerous free ones around, most of which double as a free Web Host, so it's two birds with one stone.
When asked to reccommend one, I always say www.webs.com
It's easy, and it's free.
Good luck to both of you, and I hope I've been of some assistance.
Regards
OBL