CSS comments can appear only in style sheets (internal or external), not inline styles.

You can use the small-caps-variant style property to apply a small-caps effect to text.

You can include comments that describe or otherwise include notations about the style sheet by using the following syntax:
*/ This is a CSS comment. /*

CSS includes a mechanism that allows you to change the appearance of links based on the state of the link.

With style rules it is possible to create a custom style class for a particular element that also applies to pseudoclasses.  Example - a.emphasis:link

When creating style rules you cannot specify multiple selectors for a single rule.

Letter-spacing and word-spacing are two other text-formatting properties you can use with CSS.  These allow you alter spacing between individual letters and words and can use specific standard CSS size units, such as pixels (px).

Style rules that begin with # are called ID classes, and they allow you to create a style rule that is applied to elements via the id attribute.  This type of rule is not recommended because XHTML requires the id attribute in a page to be unique.  That is, a specific id can only be used once per page.

In CSS style rules, by placing a period between the base tag and the selector portion we can create a generic style class.  Example - p.bold { font-weight:bold }

With the text-formatting style property, text-transform, you can only use the following values: none (default), uppercase, and lowercase.

To apply a pseudoclass to the state of an element you place a period (.) between the element and the pseudoclass.  Example - a.link

Links have four distinct states.  Match the correct state directly below with its corresponding description.