XHTML

Definitions

1. Extensible HyperText Markup Language — a reformulation of HTML as a strict XML application, requiring well-formed syntax (closed tags, quoted attributes, lowercase element names) and draconian error handling where a single malformed tag causes the entire page to fail to render.

   In plain English: A stricter version of the language used to build web pages that demands perfectly formatted code and refuses to show the page if anything is wrong.

   Example: "We spent a whole sprint converting to XHTML Strict only to realize browsers were just parsing it as tag-soup HTML anyway."

Related Terms

• DOM
• Tag
• ARIA
• Responsive Images
• Polyfill
• URI
• URL Parser
• XML Parser
• XSLT