PageModel.html
Contains first section's content.
Another section with child elements:
child 1
child 2
Comments:
This page's <head> contains a meta declaration,
title, and links to four stylesheets. None of that has a direct visual
rendering on the page.
The <body> element contains a body-wrapper element
with code-wrapper and comment-wrapper children. They serve to separate
the rendered code on the left from these comments.
The code-wrapper element contains a heading and two sections plus
a final <div> with styling to provide spacing before
the end of the page.