 care needs to be taken to avoid introducing
      vulnerabilities through which attackers can compromise the integrity of the site itself or of
      the site's users.
    </blockquote>
    <blockquote>
      A comprehensive study of this matter is beyond the scope of this document, and authors are
      strongly encouraged to study the matter in more detail. However, this section attempts to
      provide a quick introduction to some common pitfalls in HTML application development.
    </blockquote>
    <