There are many HTML/web page tutorials online. A search at http://www.google.com for "HTML tutorial" or "create web pages" should turn up quite a few.
Here are two classics:
NCSA - A Beginner's Guide to HTML
http://archive.ncsa.uiuc.edu/General/Internet/WWW/HTMLPrimerPrintable.html
YALE Style Manual
http://info.med.yale.edu/caim/manual/