All Web Images Videos News
Settings
Appearance
Site Icons
Font Size
Font
General
Infinite Scroll
Open Links in a New Tab
Safe Search
Chicagohistory.org is built with the following tech stack:
Document Standards
HTML5 DocType
The DOCTYPE is a required preamble for HTML5 websites.
HTML 5 Specific Tags
This page contains tags that are specific to an HTML 5 implementation.