The Three Peaks Plumbing website is designed in the xhtml 1.0 Transitional format.
CSS styling is also used in accordance with W3C (World Wide Web Consortium). All
sections must be valid xhtml Transitional.
The following rules will insure that the written code is valid:
Every page should use the Header element and organize data in a simple manner. The <h1> header should be used on every page.