so its padding will be 10% of the width of the paragraph's parent element.Given the declared width of 200 pixels, the padding will be 20 pixels onall sides.</P></DIV><DIV STYLE="width: 100px;"><P>This paragraph is contained within a DIV with a width of 100 pixels,so its padding will still be 10% of the width of the paragraph's parent.There will, therefore, be half as much padding on this paragraph as thaton the first paragraph.</P>
Figure 7-59

Figure 7-59. Padding, percentages, and the widths of parent

Sunday 24th of September 2017 01:32:00 AM

CSS Style Guide

XHTML Guidelines & Benefits

XHTML is the standard markup language for web documents and the successor to HTML 4. Library projects must be authored in structural XHTML 1.0 Transitional.

The following topics provide all the information you need to create well-formed XHTML pages that validate and are accessible, and/or to convert old HTML pages to valid, well-formed, accessible XHTML:

XHTML Guidelines
The rules of XHTML as compared to HTML — an easy transition
What is XML?
A brief introduction to the foundation of XHTML
XHTML Benefits
The benefits of converting from HTML to XHTML
XHTML Authoring Tips 'n Tools
Simplifying the work process—includes tips on using Dreamweaver
XHTML Accessibility Tips
Making sure your pages can be read
XHTML Validation
Keeping your markup kosher

H1 {margin: 0.25in; background-color: silver;}
Figure 7-6

Figure 7-6. Setting a margin for H1 elements

This sets a quarter-inch of blank space on each side of anH1 element. In Figure 7-6, thisis represented using dashed lines which are included for illustrativepurposes. These lines would not actually appear in a web browser.

margin can accept any length measure, whether inpixels, inches, millimeters, or ems. However, the default value for

There are advantages and disadvantages to using some of the strategies to import and export XML. The complexity of your application data and available system resources are factors that would determine what strategy should be used.

Client and Server side - Application Servers

overlap other elements, or be overlapped by them. (We'll seehow you can affect the overlapping order at the end of the chapter.)

Remember that the containing block of an absolutely positionedelement is not necessarily its parent element. In fact, it often isnot, unless the author takes steps to correct this situation.Fortunately, that's easy to do. Just pick the element that youwant to use as the containing block for the absolutely positionedelement, and give it a position ofrelative with no offsets. Thus:


The default value, auto, means that the clipping region should have the same size and location as the element's content area. The other possibility is to define a clipping shape that is relative to the element's content area. This does not alter the shape of the content area, but instead alters the area in which content may be rendered.


not, unless the author takes steps to correct this situation. Fortunately, that's easy to do. Just pick the element that you want to use as the containing block for the absolutely positioned element, and give it a position of relative with no offsets. Thus:

P.contain {position: relative;}

Consider the example in Figure 9-19. It shows two paragraphs that contain identical text. However, the first paragraph contains an inline boldface element, and the second an absolutely