Beautiful VenusVisit the BBc radio 1 website. The impact of the site is the work of graphic artisits and designers. For developers, it is important to know the implementation techniques for embedding grahics and choosing the appropriate graphics format. We will cover these techniques in the exercises with background images and graphics menus. However, there is a certain amount of graphics manipulation that is desirable. Consider the two images of Venus. Whilst the background colour is sometimes necessary, the manipulated image with background opacity is sometimes desirable.

Common_css

Question and Answers

1. What is a markup?

2. What is a hypertext and hypermadia?

3. What is a doctype and why is it important to include it in every HTML documnet?

4. What language can be used to style web document?

5. Which element are required for a valid XHTML5 document?

6. What is a self closing element?Give an example?

7. What is XML and why is it important to web developers?

8. Describe 4 XMl rules?

9. What is the difference between a "well-formed" and a valid web document?

Answer:
  1. A markup is simply to define elements and provide a specific tag to markup each element.
  2. Hypertext is a text whick contains links to other texts.Hypermedia is a similar concept and includes graphics,sound and video.
  3. A doctype declaration specifeis the verion of HTML to be used by a brower.Its is important to include it as browers will attemps to render documnet whitout a doctype with thier so called "quick mode" with possible unexpected result.
  4. Cascading stylesheet
    • A doctype declaration It specifies the version of HTMl to be used.
    • An HTML element with the head and body nested within it
    • A title nested with in the head
  6. Its an element that does not require a end tag.
    An example: < meta name="author" content="your name" / >
  7. XML is a general purpose markup language with stricter syntax rules than HTML. XML is important because it is essential for well structured documents that are easier to develop and maintain.
    • Elements must be properly nested.
    • Elements must have a start and end tag.
    • Element names are case-sensitive.
    • Attributes may not be repeated.
  9. A well formed document is one which follows XML syntax
    On the other hand a valid document is one which conforms to a particular doctype and is also well formed.