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Category Archives: Tutorials

Serving XHTML with math: a recipe for Apache

The future version 5 of HTML will allow math in a Web page, but the current version 4 does not. You can use XHTML instead, but not all Web clients understand it. Here is a recipe for the Apache Web server to make it return XHTML as HTML to such clients. That HTML will be invalid, of course, because it contains math, but the non-math parts are still handled. It's not as good a solution as having two versions of a page, but it's cheap.
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How to fold Jeff’s table columns with CSS

The 'collapse' keyword in CSS is designed for HTML viewers that interactively expand & collapse table columns. Current browsers don't do that by themselves, but with the help of some other features of CSS you can make browsers collapse columns, too. Here is the story behind the tutorial that explains how.
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Make Your Presentations Accessible to All

Do you remember a time when people around you broke out in laughter, but you didn't hear the joke? You could be doing a similar thing to your audience — leaving some people out.... Read on to learn how to make presentations, talks, meetings, and training accessible to all of your potential audience, including people with disabilities and others...
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