Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

CSS

help

An element can only have------- ID, and a page can only have-------- element with the same ID name.

1 Answer

An element can only have "one" ID and a page can have "one" element with the same ID name.

An "id" is unique to an HTML page and can only be used once.

A "class", however, can be used multiple times within an HTML page.