Friday 27th of May 2016 04:08:53 PM

by Eric A. Meyer
ISBN 1-56592-622-6
First edition, published May 2000.
(See the catalog page for this book.)

Search the text of Cascading Style Sheets: The Definitive Guide.

Table of Contents

Copyright Page
Preface
Chapter 1: HTML and CSS
Chapter 2: Selectors and Structure
Chapter 3: Units and Values
Chapter 4: Text Properties
Chapter 5: Fonts
Chapter 6: Colors and Backgrounds
Chapter 7: Boxes and Borders
Chapter 8: Visual Formatting

7.3.1. Length Values and Margins

As stated before, any length value can be used in setting the margins of an element. If we want a 10-pixel whitespace around paragraph elements, that's simple enough. The following markup creates a normal paragraph and one that has a ten-pixel margin applied to it, shown in Figure 7-7:

P {background-color: silver;}
Chapter 9: Positioning
Chapter 10: CSS2: A Look Ahead
Chapter 11: CSS in Action
Appendix A: CSS Resources
Appendix B: HTML 2.0 Style Sheet
Appendix C: CSS1 Properties
Appendix D: CSS Support Chart
Index
Colophon
Library Navigation Links

Copyright © 2002 O'Reilly & Associates. All rights reserved.

one particular page, you don't want those images to float. Rather than writing a whole new style sheet, you could simply place IMG {float: none;} in your document's embedded style sheet. Beyond this type of circumstance, though, there really isn't much call to use float: none in your HTML documents.

7.6.2. Clear

H1 {padding: 0 0 0 0.25in;}
H2 {padding-left: 0.25in;}

7.5.3. Padding and Inline Elements

There is one major difference between margins and padding when it comes to inline elements. Let's turn things around and talk about left and right padding first off. Here, if we set values for the left orinline element with a background color and padding could have the background extend above and below the element. Figure 7-61 gives us some idea of what that might look like. The line height isn't changed, of course, but since padding does extend the background, it should be visible, right?

Here's where the famous phrase returns: "there may be implementation-specific limits." User agents aren't required to support this type of effect.