What Is Responsive Design?Why Is Mobile So Important?Responsive Design vs. Device-Specific ExperiencesResponsive Web Design Is Not Limited Just to MobileWhen Would You Not Use Responsive Web Design?Understanding the ViewportUnderstanding BreakpointsExamples of Responsive Web DesignAugustNyetimberGetting Started with HTML5AccessibilityVideo and Audio SupportSmarter StorageNew InteractionsCanvasMobileLooking at HTML5 TechnologiesThe doctypeNew Semantic HTML TagsNew Meta TagsWeb FormsPolyfillingValidating the HTML5 PageWhat’s New in CSS3Browser Vendor PrefixesCSS3 ExamplesSummary