Explain the difference between HTML and XHTML ?

• HTML (HyperText Markup Language)
• • More forgiving: browsers auto-correct many mistakes.
  • Tags/attributes not case-sensitive (<P> = <p>).
  • Not all elements require closing tags (<br>, <img>).
  • Attribute values can sometimes be unquoted.
  • MIME type: text/html.
• XHTML (Extensible HyperText Markup Language)
• • Based on XML → must be well-formed.
  • Strict rules:
  • • Tags and attributes in lowercase.
    • Must close all elements (<br /> not <br>).
    • Attributes must have quoted values.
    • Proper nesting required.
  • MIME type: application/xhtml+xml.

Example HTML vs XHTML