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Web Terminology

Halftone

The method of producing a range of tones, such as a photograph or tinted area, by dividing the image into a series of dots. Dark areas have relatively big dots, close together. Light areas have small dots surrounded by white space. The number of dots used determines the quality of the image produced. In a newspaper the halftone dots are easily visible to the naked eye - the screen used can often be as coarse as 60 dpi (dots per inch). A colour magazine would typically use a screen of 150 dpi - An art book, 175 dpi or finer.
A halftone screen can be applied to a solid colour in order to produce tints of that colour.

Hanging indent

A paragraph with the first line extending to the left of the other lines.

Hard copy

A printed paper copy of output in readable form. It is also a transparency film or photograph of an image displayed on the monitor.

Hexadecimal

When you define colors for backgrounds, links, fonts and whatever else in HTML, you can either define them with a word (ie "white") or the hexadecimal equivalent. The hexadecimal notation represents each RGB (red, green & blue) component of a color in two characters, 00 to FF, rather than three characters, 000 to 256. The hexadecimal equivalent of white is 000000, and black is FFFFFF

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Hinting

Guidelines added to a font to help it print and display more consistently at small sizes. Most fonts contain some form of hinting, ranging from very cursory to very thorough. See Delta hinting.

.htaccess

the .htaccess file and the power it has to improve your website. Although .htaccess is only a file, it can change settings on the servers and allow you to do many different things, the most popular being able to have your own custom 404 error pages. .htaccess isn't difficult to use and is really just made up of a few simple instructions in a text file.

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HTML (no specifics unless in filenaming then always lowercase)

Definition: Hypertext Markup Language

Hypertext Markup Language is the original and the simplest display language for the Web. It defines the look of the screen background, the location of text and graphics, the appearance of text,(font, size, style, color, line breaks) and the creation of links. HTML uses simple commands called 'flags'. Flags are the 'Markup' part of 'Hypertext Markup Language'. Basic HTML lays things out on screen one below another, like a roll of paper towels. Basic HTML is not sophisticated. With basic HTML, if one thing changes on the screen, the whole screen is erased and the entire screen is redrawn.

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HTTP

Definition: HyperText Transfer Protocol

The protocol for moving hypertext files across the Internet. Requires a HTTP client program on one end, and an HTTP server program (such as Apache) on the other end. HTTP is the most important protocol used in the World Wide Web (WWW).

Hyphenisation zone

The area at the end of a text line where it is acceptable to hyphenate words.