Group items tagged NED12 - HTML5 development

shared by Vernon Fowler on 18 Nov 12 - No Cached

for the sake of performance, it would make better sense to include the CSS first then this script
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shared by Vernon Fowler on 21 Nov 12 - No Cached

To prevent the footer’s heading from becoming the page heading we can wrap the footer element’s contents in a section element:
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This really feels like a hack, but it does move the footer heading to its expected position in the document outline.
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Since there is no heading in the nav element, it becomes “Untitled NAV”.
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shared by Vernon Fowler on 17 Nov 12 - No Cached

One element can also have multiple properties (multiple itemprop="" names separated by spaces) with the same value: <p itemscope><span itemprop="guitar vocals">Chris Askew</span>  is so dreamy.</p>
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One element can also have multiple properties (multiple itemprop="" names separated by spaces) with the same value: <p itemscope><span itemprop="guitar vocals">Chris Askew</span>  is so dreamy.</p>
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One element can also have multiple properties (multiple itemprop="" names separated by spaces) with the same value: <p itemscope><span itemprop="guitar vocals">Chris Askew</span>  is so dreamy.</p>
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shared by Vernon Fowler on 27 Oct 12 - Cached

The schema.org vocabulary can be used with both Microdata or RDFa 1.1 Lite syntax, and it has types for Event, Organization, Person, Product, Review, AggregateRating, Offer and hundreds of others.
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shared by Vernon Fowler on 28 Oct 12 - No Cached

shared by Vernon Fowler on 21 Aug 12 - No Cached

Update 10 August 2012: in response to a query, I checked again and pubdate is gone from both the WHATWG and W3C specs.
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Previously, you could only mark up precise dates. So, 13 November 1905 could be expressed in HTML <time datetime="1905-11-13"> but November 1905 couldn’t be. This is a problem for historians where sometimes the precise date isn’t known.
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Neither can you indicate date ranges. To mark up From “21/02/2012 to 25/02/2012″, use two separate <time> elements.
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...3 more annotations...
So <time datetime="P4D"> is a duration of 4 days
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<time datetime="1905"> means the year 1905
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<time datetime="1905-11"> means November 1905
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