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HTML Introduction to HTML and CSS (2016) Adding a New Web Page Set up an HTML Document

mustafa attaie
mustafa attaie
8,068 Points
Posted by mustafa attaie
mustafa attaie
8,068 Points

Doctype Question?

ok, so i've seen some teachers in treehouse have there Doctype in all caps and all lowercase. whats more professional for the everyday workforce use?

3 Answers

Matt Ramsden
Matt Ramsden
14,152 Points
Matt Ramsden
Matt Ramsden
14,152 Points

Sometimes it's in capitals to emphasie that it's an important part of the code. It's down to personal preference really, I always have mine in capitals as that's how I was taught years ago. But it can only be one or the other, or all caps or all lower case and not a mix

!doctype - legal !DOCTYPE - legal !Doctype - Illegal !DoctYpe - illegal

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Some Treehouse teachers may use all lower case. But I'd point to the Treehouse website itself as a good example. Most places use all caps for the doctype. Right click this page and view the source :)

<!DOCTYPE html>

That's what I see most often.

mustafa attaie
mustafa attaie
8,068 Points
mustafa attaie
mustafa attaie
8,068 Points

is there a right or wrong answer? I didn't think so, but i completely forgot to use other websites as a source! xD thank you, i'll keep that in mind for next time!

Zenon Paredes
Zenon Paredes
19,204 Points
Zenon Paredes
Zenon Paredes
19,204 Points

The doctype is case-insensitive, will work wether its lowercase or uppercase, official documents use capitalized doctype so I'd use " !DOCTYPE html ". Take a look : https://www.w3.org/TR/html51/introduction.html#a-quick-introduction-to-html.