Convert HTML to XHTML
Good to know 6 steps:
First step: add !DOCTYPE as the first line of the page!!! Second step: add xmlns attribute to the openint html tag! xmlns attribute specifies an xml namespace! Third step: ensure that all elements are properly closed and nested! Fourth step: change all attribute and elemnt name to lowercase! Fifth step: use id attribute instead of name attribute! Sixth step: make sure that all attribute values have quotes around them!
See the webpage bellow: