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Items tagged html5 in Aug

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Dive Into HTML 5. Mark Pilgrim’s free online book on HTML 5—currently just one chapter on canvas (which neatly illustrates the coordinate system using a diagram rendered using canvas itself) but certain to become an invaluable resource for anyone looking to take advantage of HTML 5. # 20th August 2009, 2:40 pm

On HTML 5 Drag and Drop. Francisco Tolmasky investigated HTML 5 drag and drop, which allows web apps to implement drag and drop between windows and between the browser and the desktop. He found a number of problems with the spec and proposes detailed solutions. # 17th August 2009, 12:31 pm

This Week in HTML 5—Episode 1. It looks like the most controversial aspect of the HTML 5 spec has been addressed - now, instead of omitting the alt attribute for user generated content that has no relevant information available, sites are advised to provide an indication of the kind of image expected surrounded by braces, for example alt="{uploaded photo}". # 7th August 2008, 7:57 am

Why the Alt Attribute May Be Omitted. “The benefit of requiring the alt attribute to be omitted, rather than simply requiring the empty value, is that it makes a clear distinction between an image that has no alternate text (such as an iconic or graphical representation of the surrounding text) and an image that is a critical part of the content, but for which not alt text is available.” # 25th August 2007, 1:11 pm