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head ... /head syntax, optional element

Syntax head: optional element

start tag <head> is optional if:
- head element is empty or
- he first thing inside the head element is an element: e.g. Syntax 3
end tag <⁄head> is optional if:
- head element is not immediately followed by a comment or a space character

Examples head syntax: optional element

Valid Syntax 1
head start, end tags present
1 2 3 4 5 6 7 8 9	<!doctype html> <html> <head> <⁄head> <body> <⁄body> <⁄html>

Valid Syntax 2
only head end tag present
1 2 3 4 5 6 7 8 9	<!doctype html> <html> <⁄head> <body> <⁄body> <⁄html>

Valid Syntax 3
only head end tag present
1 2 3 4 5 6 7 8 9	<!doctype html> <html> <title> ... <⁄title> <⁄head> <body> <⁄body> <⁄html>

Valid Syntax 4
only head start tag present
1 2 3 4 5 6 7 8 9	<!doctype html> <html> <head> <body> <⁄body> <⁄html>

Valid Syntax 5
head start,end tags absent
1 2 3 4 5 6 7 8 9 10	<!doctype html> <html> <body> <⁄body> <⁄html>

Valid Syntaxes: 1, 2, 3, 4, 5

head intro head occurrences head browser display head parents - children head lang attribute