| Filename extension | .xhtml, .html |
|---|---|
| Internet media type | application/xhtml+xml |
| Developed by | Eric Meyer |
| Type of format | Presentation program |
| Extended from | Opera Show Format |
| Open format? | Yes. Public Domain.[1] |
| Website | S5 homepage |
S5 (Simple Standards-Based Slide Show System) is an XHTML-based file format for defining slideshows. It was created by Eric Meyer as an alternative to the browser-centric Opera Show Format. S5 is not a presentation program, but fulfills the same purpose in combination with a standards-compliant web browser.
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The initial version of S5[1][2] was released by Eric Meyer on October 18, 2004 under a Creative Commons license.[3] With the release of version 1.1 on July 28, 2005, S5 was placed in the public domain.[1]
On July 17, 2006, Ryan King launched s5project.org, "a new community site, dedicated to the S5 Presentation software".[4][5][6][7]
On December 4, 2006, Andreas Gohr announced a DokuWiki plugin that converts Wiki markup to XHTML-compatible S5 presentations.[8]
The content of an S5 presentation can be stored in a single XHTML file. This file contains several slides which are structured in the following way:
<div class="slide"> <h1>slide title</h1> <ul> <li>the first point</li> <li>the second point</li> <li>the third point</li> </ul> <div class="handout"> ... additional material that appears on the handout </div> </div>
S5 presentations can be viewed in outline and slideshow mode; Cascading Style Sheets are used to define different layouts for outline, slideshow and print. Navigation controls, a dynamically generated list of slides and accesskeys allow browsing back and forth.
A more semantic version of the S5 format is based on the XOXO microformat and uses <li class="slide"> instead of divs for the slides, as well as <ol class="xoxo presentation"> instead of a div for the overall presentation.
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