Understanding Progressive Enhancement

Steven Champeon turned web development upside down, and created an instant best practice of standards-based design, when he introduced the notion of designing for content and experience instead of browsers. In part one of a series, ALA’s Gustafson refreshes us on the principles of progressive enhancement. Upcoming installments will translate the philosophy into sophisticated, future-focused design and code.

Faux Absolute Positioning

CSS layout is awesome, except when your layout calls for a header, a footer, and columns in between. Use float, and content changes can cause columns to wrap. Use absolute positioning, and your footer can crash into your columns. Add the complexity of drag-and-drop layouts, and a new technique is needed. Enter “faux absolute positioning.” Align every item to a predefined position on the grid (as with absolute positioning), but objects will still affect the normal flow (as with float).

They Shoot Browsers, Don’t They?

Version targeting will allow Microsoft to reach new heights of standards compliance where CSS and (especially) scripting are concerned. But to benefit from it, developers must explicitly opt in. That’s just not right, says Jeremy Keith. And it’s doomed to fail, because standardistas, by their very nature, will refuse to opt in.

Beyond DOCTYPE: Web Standards, Forward Compatibility, and IE8

For seven years, the DOCTYPE switch has stood designers and developers in good stead as a toggle between standards mode and quirks mode. But when IE7, with its greatly improved support for standards, “broke the web,” it revealed the flaw in our toggle. The quest was on to find a more reliable ensurer of forward compatibility. Is version targeting the answer?

How to Size Text in CSS

It’s a tug-of-war as old as web design. Designers need to control text size and the vertical grid; readers need to be able to resize text. A better best practice for sizing type and controlling line-height is needed; and in this article, Richard Rutter obligingly supplies one.

Put Your Content in my Pocket, Part II

Screen size matters. And now that Apple is embedding mobile Safari in more iPods than the iPhone alone, it matters even more. Concluding his remarkable two-part series, Craig Hockenberry covers the down and dirty details of designing and coding with the iPhone (and its brethren) in mind.

Conflicting Absolute Positions

All right, class. Using CSS, produce a liquid layout that contains a fixed-width, scrolling side panel and a flexible, scrolling main panel. Okay, now do it without JavaScript. By chucking an assumption about how CSS works in browsers, Rob Swan provides the way and means.

Accessible Web 2.0 Applications with WAI-ARIA

Our web applications can suffer from inaccessibility problems due to inherent markup limitations. Martin Kliehm helps us sort through the WAI specs for Accessible Rich Internet Applications (ARIA) to increase usability.