The title says it all.
Is the doctype of: (base.html)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
Passed on to (home.html)
{% extends 'base.html' %}
Or do I need to declare the doctype in all of my documents? like so:
<!DOCTYPE html>
{% extends 'base.html' %}
No, you don't need to add <!DOCTYPE html>
once you haved declared in the base.html when you are extending from it.