This is a glossary of the book, a list of keywords with definitions.

D

declaration

One of the parts a CSS rule located in the curly brackets and separated by a semicolon, such as "font-weight: bold" in "span { font-weight: bold; background: yellow; }".

E

element

A part of a document starting with an opening tag and ending with a closing tag, such as "<p><b>keyword</b> is important</p>".

P

R

rule

A string consisting of a selector, the "{" character, style specification, and the "}" character, such as "p { color: green; }".

S

selector

The part of a CSS rule before the first "{".

shorthand property

A CSS property that enables the setting of multiple properties as once, such as "border" as contrasts to non-shorthand properties "border-style" and "border-width".

T

tag

The opening and closing sequence of characters of an element, such as "<p>" or "</p>". To be distinguished from element.

U

user agent

The client application such as a web browser used with a particular network protocol, such as http: or ftp:.