First we will learn how to make comments. This is important so when you go back to your code you will know what each code piece does
Iding is a way to give something a code a spefic code value. Think of it like giving it a nickname.
An IFrame aka an Inline Frame is an HTML document embedded inside another HTML document on a website. The IFrame HTML element is often used to insert content from another source, such as an advertisement, into a Web page.
And the final Challenge in this chapter.