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Not long ago, while interviewing candidates for job openings, we discovered some appreciable knowledge gaps in the performance and scalability areas among our fellow developers. While many developers were fully versed in their server-side language of choice, they seemed to have no more than an anecdotal level of learning in HTML5 and CSS3. (By “anecdotal level,” we mean they’d seen examples of HTML5 and CSS3—or perhaps had read a synopsis of the new aspects of HTML5—and drew conclusions from those patterns but missed some of the deeper meaning behind them.) In other words, we found a lot of people who could tell ...

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