Web Design Digital Classroom by Jeremy Osborn & Jennifer Smith & AGI Creative Team

Author:Jeremy Osborn & Jennifer Smith & AGI Creative Team
Language: eng
Format: epub
Publisher: Wiley
Published: 2011-03-24T16:00:00+00:00

Review

Questions

1 What is the em measurement when referring to font-size? What are its advantages?

2 Jennifer has defined the paragraph rule in her CSS the following way:

p {

font-family:Baskerville;

}

Is this the best way for her to define her paragraph style? Explain your answer.

3 What is the best way to increase or decrease space between two text blocks (for example, the space between a heading and a paragraph)?

Answers

1 The em as it applies to font-size in CSS is a relative unit of measurement. A unit of 1 em is equivalent to the default font-size of the web browser (traditionally 16 pixels). Because em units are relative, they scale well when resized in a browser. They also allow the designer to link elements such as paragraphs and headings to a specific value in the body. This allows for easy resizing of text if needed.

2 This is not the best way for Jennifer to define her paragraph style. Because fonts defined in a style sheet only appear on the user’s page if they have the font installed on their system, it is best to use a font-stack. A font-stack lists two or more fonts in the preferred order of display (based on their availability on the user’s system). Furthermore, this font-stack should include fonts that are generally accepted as being on most systems.

3 The best way to increase or decrease space between two text blocks is to use margins, padding, or some combination of the two. All CSS elements are based on a box model, and the space outside of the element is controlled by an invisible margin on all four sides. The space inside the element is controlled by invisible padding. In the case of a paragraph that is below a heading, you would only need to set the top or bottom values, not the right or left values.

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