Tuesday, August 3, 2010

blog d

Why is it important to define a local folder in Dreamweaver (or any web authoring software for that matter?)
The reason why it is important to define a local folder in Dreamweaver, or any web authoring software for that matter is so that the Macromedia Dreamweaver can keep track of links between web pages and dependent files, so that it can define a folder on the hard disk. The local root folder should contain the web page files for the site as well as all images, flow the style of the sheet files, templates, and other dependent files.

Why are tables ‘out of fashion’? When should they be used?
You use tables to display tabular data and use CSS for web layouts. The reason why tables are “out of fashion” is that CSS is now used instead of tables, give better results.

Why do you need to use an image placeholder in the development stage?
An image placeholder is important in the development stage because it allows you to create a graphic or image after saving space for it. You can set the placeholder and return to insert the image later.

In HTML, how are colours expressed?
HTML colors are defined using a hexadecimal notation (HEX) for the combination of Red, Green, and Blue color values (RGB). The combination of Red, Green, and Blue values from 0 to 255, gives more than 16 million different colors (256 x 256 x 256). HEX values are specified as 3 pairs of two-digit numbers, starting with a # sign.

What do we mean by a websafe colour?
Some years ago, when computers supported max 256 different colors, a list of 216 "Web Safe Colors" was suggested as a Web standard, reserving 40 fixed system colors. The 216 cross-browser color palette was created to ensure that all computers would display the colors correctly when running a 256 color palette. This is not important today, since most computers can display millions of different colors.

What is CSS?
Cascading Style Sheets (CSS) is a style sheet language used to describe the presentation semantics (the look and formatting) of a document written in a markup language.

Why is CSS used?
CSS is a language used to define the layout and appearance of webpages.

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