Cleaning Dirty HTML with tidy

Abstract

HTML is a standard file format for pages that can be viewed in a Web browser. There are a great many ways to create HTML pages, ranging from graphical editors such as Dreamweaver to text editors such as Notepad, Emacs, or Vim. Unfortunately, graphical editors generally do not work well with most Web frameworks, including Rails, and HTML produced with text editors may not be standards-compliant; it may lack closing tags or use invalid tag combinations or attributes. Additionally, some graphical editors produce bad HTML; the problem is exacerbated by the fact that modern browsers are very tolerant of HTML that is not standardscompliant, so very incorrect HTML will often still display properly.