XHTML 1.1 - Served as application/xhtml+xml
Web Semantics
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Semantic HTML
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Emphasis
<em> is used for emphasis, and <strong> for strong emphasis. Most web browsers display emphasized text in
italics, and strongly emphasized text in bold. However, this is not a requirement, so to be sure how emphasized text is displayed, it is best to
use CSS to specify their presentation. Avoid using emphasis when all you really want is a visual effect.
Example:
<p><em>Emphasized</em> text is normally displayed in italics, while <strong>strongly emphasized</strong> text is usually displayed in bold.</p>Emphasized text is normally displayed in italics, while strongly emphasized text is usually displayed in bold.
Tables
XHTML tables should not be used for layout. For marking up tabular data, however, tables are what should be used. To make data tables as accessible as
possible it is important to know about and use the various components that can make up a table. A few examples are table headings (<th>),
summaries (the summary attribute), and captions (the <caption> element).
Example:
<table class="example" summary="This table shows the annual population increase in Sweden during the years 1999 to 2003."> <caption>Annual population increase in Sweden, 1999–2003</caption> <thead> <tr> <td> </td> <th scope="col">1999</th> <th scope="col">2000</th> <th scope="col">2001</th> <th scope="col">2002</th> <th scope="col">2003</th> </tr> </thead> <tbody> <tr> <th>Population</th> <td scope="row">8 861 426</td> <td scope="row">8 882 792</td> <td scope="row">8 909 128</td> <td scope="row">8 940 788</td> <td scope="row">8 975 670</td> </tr> <tr> <th>Increase</th> <td scope="row">7 104</td> <td scope="row">21 366</td> <td scope="row">26 368</td> <td scope="row">31 884</td> <td scope="row">34 882</td> </tr> </tbody> </table>| 1999 | 2000 | 2001 | 2002 | 2003 | |
|---|---|---|---|---|---|
| Population | 8 861 426 | 8 882 792 | 8 909 128 | 8 940 788 | 8 975 670 |
| Increase | 7 104 | 21 366 | 26 368 | 31 884 | 34 882 |
