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Index: O

oblique text: 5.4.1. Fonts with Style
octothorpe (#) preceding ID selectors: 2.3.2. ID Selectors
offsets (see side-offset properties)
Opera
CSS implementation in: 1.3.2. Implementations
padding and: 7.5.4. Padding: Known Issues
padding values, negative: 7.5. Padding
operating system, colors and: 10.5.2. Colors
order sorting: 2.8. The Cascade
ordered lists: 7.7.1. Types of Lists
7.7.2. List Item Images
origin image: 6.2.3.3. Length values
origin sorting: 2.8. The Cascade
origins: 2.8. The Cascade
orphans property: 10.8.1. Paged Media
outline properties: 10.5.3. Outlines
overflow: 9.1.4. Content Overflow and Clipping
overflow-clip property: 9.1.4.2. Overflow clipping
overflow clipping: 9.1.4.2. Overflow clipping
overflow property: 9.1.4.1. Overflow
overlapping
elements, altering: 9.5. Stacking Positioned Elements
floated elements, preventing: 8.3.1. Floating: The Details
margins (see collapsing margins)
text, preventing: 8.4.3. Managing the Line Height of Inline Elements
overlining: 4.1.6. Text Decoration
overriding previously declared values: 11.1.3. Case 3: Putting a Magazine Article Online

from the root directory of the web-server.  Suppose your web page is http://www.taxidermy.org/~mad_dog/homepage.html and it includes a link to cadavers.html which is located in the same subdirectory.  The link could specify the relative URL <A HREF="cadavers.html"> (the default scheme is http://) or the absolute URL <A HREF="http://www.taxidermy.org/~mad_dog/cadavers.html">.  Relative URLs are usually preferable.  If you moved your site to www.weirdos.net, you would have to fix all the absolute URLs; but the relative URLs would work fine.  (They're shorter too.) 

If a URL omits the filename, the browser looks for a file named "index.html"


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If you look closely at Figure 5-26, you'll seethere is no apparent difference between the EM andI elements. In practice, not every font is sosophisticated as to have both an italic face and an oblique face, andeven fewer web browsers are sophisticated enough to tell thedifference when both faces do exist.

Figure 5-26

Figure 5-26. More font styles

If either of these is the case, a few things can happen. If there isno Italic face, but there is an Oblique face, then the latter can beisn't.

It is, of course, possible to create very unreadable documents with this property, as Figure 4-49 makes clear:

P {word-spacing: 1in;}
Figure 4-49

Figure 4-49. Really wide word spacing

4.1.4.2. Letterspacing