HTML5 isn't as confusing as it once was, but it still isn't straightforward. It's an evolutionary, rather than revolutionary, change in the ongoing story of markup-and if you're currently creating websites with any version of HTML, you're already using HTML5. Harness the power of this essential evolving spec with help from Jeremy Keith and Rachel Andrew. Brush up on syntax and updated elements, and get ready to work with responsive images, microformats,...