My Internet Dictionary

Syntax

Like any language, HTML comes with a set of rules. These rules are relatively simple. It comes down to defining boundaries, to know where something starts and where something ends.

Tag

HTML tags are the hidden keywords within a web page that define how the browser must format and display the content. Most tags must have two parts, an opening and a closing part. For example,

 < html > is the opening tag and < / html > is the closing tag.

Element

An HTML element is an individual component of an HTML document or web page, once this has been parsed into the Document Object Model. HTML is composed of a tree of HTML nodes, such as text nodes. Each node can have HTML attributes specified.

Class

The class attribute specifies one or more classnames for an element. The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class.

ID

The id attribute specifies a unique id for an HTML element (the value must be unique within the HTML document). The id attribute is most used to point to a style in a style sheet, and by JavaScript (via the HTML DOM) to manipulate the element with the specific id. Used for Definition and Usage.

Attribute

Attributes provide additional information about HTML elements. using a name="value" format.

Selector

CSS selectors are used to "find" (or select) HTML elements based on their element name, id, class, attribute, and more.

Block

Block is a term that helps describe how much space an element will take up. Think of the phrase "taking up the whole block" and envision someone greedily taking up the whole street, no one else can be there.

Client

A Client is the "user side" of the connection to the work happening on the internet.

Server

A server is a computer or computer program that manages access to a centralized resource or service in a network.