Does HTML 5 need `<html xmlns="http://www.w3.org/1999/xhtml">`
html
Solution
No, you don't need to include it. This should be enough.
<!doctype html>
<html>
Problem
When writing a html 5 doctype, are you supposed to include the `<html xmlns="http://www.w3.org/1999/xhtml">` as you did when previously using HTML4 doctype or should a different xhtml be used? ``` <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> ```