The text-based nature of HTML makes creating web pages a simple task. The ease of this task has meant that many web pages that are published on the World Wide Web are created by use of text editors. Pages designed manually using text editors are often riddled with illegal HTML grammar. The content of this page goes here.
Links are a major error-prone area.
However, the above link works perfectly on the Macintosh platform, and so many people do not realise their mistake. Not even the use of web page construction utilities, such as Claris Home Page, and Adobe PageMill ensure that pages are error-free. For example, Microsoft's web pages were built with FrontPage.