Both id and class are examples of which of these?

Which of these are not true of both class and id?

True or False: The id attribute should be used for CSS purposes?

Why is it a bad idea to name a class something like align-left, which reflects CSS styles?

True or False: It is possible to have multiple id or class names on a single HTML element.

What is the best choice for naming a class?

When adding multiple id or class names to a single HTML element, how do you separate them?

Which of the following is not a good use for an id attribute?

True or False: id and class names should be written in all lowercase.