The Page Skeleton

Every HTML page starts from the same skeleton, the doctype, an html element with a head and a body, and knowing what each line does saves you from strange bugs.

Updated

Codey's cheat sheet for The Page Skeleton: Every HTML page starts from the same skeleton, the doctype, an html element with a head and a body, and knowing what each line does saves you from strange bugs.
Category
HTML
Level
Novice
Tags
<body>, <head>, <title>, Character encoding declaration, Document type declaration, html, HTML comment