HTML and CSS Reference
• Do not deviate from the XHTML Basic document type. Using tags
not supported by XHTML Basic almost guarantees rendering er-
rors on a large percentage of mobile devices.
• Use stylesheets to separate content from presentation. XHTML
Basic defines the best way to integrate stylesheets with your mo-
• Keep your total page size under 20 kilobytes. This includes the
base page content, any associated stylesheets, and all included
By adopting these guidelines, judiciously editing your content, and
structuring your pages to be easily navigated, you'll be creating remark-
able mobile content that will have your users cheering.