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HTML5 First Look

Current HTML5 support


From:

HTML5 First Look

with James Williamson

Video: Current HTML5 support

Okay, so we know HTML5 is a huge specification and we know that some parts are more mature than others. Well, this leads to two rather obvious questions. What can I use now and what level of support do browsers offer for HTML5? First off, I want to mention that there are two problems with discussing current HTML5 browser support. At the moment HTML5 implementation is changing so rapidly that this movie will be obsolete the moment I finish recording it. Not to mention that dissecting every HTML5 feature in the shades of support that they enjoy in various browser versions would take much longer than the time that I have here.
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  1. 3m 56s
    1. Welcome
      1m 1s
    2. Using the exercise files
      1m 50s
    3. Who is this course for?
      1m 5s
  2. 21m 12s
    1. Exploring prior standards
      4m 26s
    2. Why do we need HTML5?
      3m 32s
    3. HTML5 timeline
      4m 24s
    4. Current HTML5 support
      4m 25s
    5. What HTML5 is (and what it isn't)
      4m 25s
  3. 27m 49s
    1. HTML5 vs. HTML4
      3m 25s
    2. New structural tags
      6m 1s
    3. New content tags
      4m 7s
    4. New application-focused tags
      5m 32s
    5. Deprecated elements
      4m 28s
    6. API overview
      4m 16s
  4. 22m 29s
    1. Content models
      5m 33s
    2. Understanding the outline algorithm
      3m 21s
    3. The role of ‹div› tags
      4m 20s
    4. Using ID and class attributes
      2m 6s
    5. DOCTYPE declarations
      4m 16s
    6. Character encoding
      2m 53s
  5. 41m 27s
    1. Basic page structure
      3m 40s
    2. Structuring top-level elements
      7m 30s
    3. Structuring interior content
      8m 42s
    4. Building headers
      9m 11s
    5. Checking document outlines
      5m 46s
    6. Ensuring cross-browser structure
      6m 38s
  6. 27m 53s
    1. New input types
      5m 57s
    2. Setting form autofocus
      2m 53s
    3. Using placeholder data
      4m 4s
    4. Marking required fields
      3m 24s
    5. Working with number inputs
      5m 49s
    6. Using date pickers
      5m 46s
  7. 1h 1m
    1. Canvas overview
      6m 21s
    2. Adding canvas content
      8m 58s
    3. Drawing in the canvas environment
      12m 9s
    4. Drag-and-drop API overview
      6m 18s
    5. Offline applications overview
      7m 11s
    6. Video overview
      5m 45s
    7. Encoding video
      8m 23s
    8. Adding video
      5m 58s
  8. 57m 33s
    1. Geolocation API overview
      5m 50s
    2. Web storage API overview
      5m 40s
    3. WebSockets overview
      4m 16s
    4. CSS3 overview
      6m 38s
    5. Enhancing typography with CSS3
      7m 42s
    6. Using @font-face
      7m 11s
    7. Styling HTML5 with CSS3
      10m 23s
    8. Using CSS3 transitions
      9m 53s
  9. 5m 6s
    1. Final thoughts
      3m 49s
    2. Goodbye
      1m 17s

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HTML5 First Look
4h 28m Beginner Aug 23, 2010

Viewers: in countries Watching now:

In HTML5 First Look, author James Williamson introduces the newest HTML specification, providing a high-level overview of HTML5 in its current state, how it differs from HTML 4, the current level of support in various browsers and mobile devices, and how the specification might evolve in the future. Exercise files accompany the course.

Topics include:
  • Understanding the history of HTML5
  • Using new tags
  • Understanding HTML5 semantics
  • Coding ID and class attributes in HTML5
  • Structuring documents
  • Building forms
  • Exploring HTML5 native APIs
  • Encoding and adding HTML5 video
  • Exploring associated technologies such as CSS3
Subjects:
Developer Web Web Design Web Development
Software:
HTML
Author:
James Williamson

Current HTML5 support

Okay, so we know HTML5 is a huge specification and we know that some parts are more mature than others. Well, this leads to two rather obvious questions. What can I use now and what level of support do browsers offer for HTML5? First off, I want to mention that there are two problems with discussing current HTML5 browser support. At the moment HTML5 implementation is changing so rapidly that this movie will be obsolete the moment I finish recording it. Not to mention that dissecting every HTML5 feature in the shades of support that they enjoy in various browser versions would take much longer than the time that I have here.

With that in mind, in this movie I want to discuss the various levels of browser support for some of the major features of HTML5, and then give you a list of online resources that can help you keep up with HTML5 support and feature detection. Also I want to point out that the table that we are going to look at right here is greatly simplified. Many of the new features of HTML5 have varying degrees of support or implementation based on the browser. Don't assume, for example, that because canvas is listed as being supported by Opera 9 means that all things canvas are available to you.

As you can see from this table, although most modern browsers support a large portion of the new HTML5 features, support is often partial. You've probably already noticed that Internet Explorer doesn't offer much in the way of HTML5 support at all. Microsoft has pledged to introduce significant support for HTML5 in Internet Explorer 9, so that is certainly a step in the right direction. Obviously knowing your target audience and the capabilities of their browser is a significant factor in deciding when to use specific HTML5 features.

Thankfully there are some online resources that you can use when needing to explore HTML5 feature support in more detail. First, Wikipedia has a page comparing layout engines and their support of HTML5. While it's a very thorough listing, I've found it's not always up-to-date and often lists the nightly build instead of noting earlier version support. findmebyip.com has a web designer's checklist that lists support for certain HTML5 features as well as CSS3 properties.

The list isn't as comprehensive as some but it does a nice job of comparing the Windows and Mac versions of the browsers. Interestingly enough Microsoft has one of the best browser comparison charts out there. The IE 9 Test Center compares the future IE 9 release against other major browsers. As you can guess, Internet Explore 9 comes off rather well in these comparisons and not all features are listed but the ones that are have a nice amount of detail, which allow for a side-by- side comparison of specific methods.

caniuse.com has a helpful chart of various specifications and capabilities including HTML5. You can filter the results and see the resulting browser support based on what you have searched for. Each category also features links to demo pages, articles, and test pages of the various features. If you want to test your user agents specifically you can go to html5test.com, which will test and then score your browser based on its HTML file support.

findmebyip.com also features similar capabilities on its homepage, listing not only your IP and current browser but its support for various CSS3 and HTML5 capabilities. If anything this brief overview of HTML5 support shows how very current levels of support are, and how difficult it can be to add HTML5 capabilities to your projects by targeting a specific browser. Instead I recommend considering adding HTML to your projects through progressive enhancement.

This approach allows your application to detect HTML5 support and provides fallback content for user agents that don't support the features you're using. Modernizer is an open-source JavaScript library that automatically detects HTML5 support and makes it easy to degrade your page's content when features aren't detected. We will discuss Modernizer a little later on in this title.

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