Group items tagged

The value of input elements whose type attributes are in the Text, Search, URL, or E-mail states and that are mutable (i.e. that do not have the readonly attribute specified and that are not disabled).The value of textarea elements that do not have a readonly attribute and that are not disabled.

Otherwise, if there is an ancestor element with a spellcheck content attribute that is not in the default state, then: if the nearest such ancestor's spellcheck content attribute is in the true state, then checking is enabled; otherwise, checking is disabled.

a third option developed using lessons learned from microformats and RDFa, and designed to be integrated into HTML5 itself: microdata.

“Adding microdata” to your page is a matter of adding a few attributes to the HTML elements you already have.

So where is the real information? It’s in the <dd> element, so that’s where we need to put the itemprop attribute. Which property is it? It’s the name property. Where is the property value? It’s the text within the <dd> element. Does that need to be marked up? the HTML5 microdata data model says no, <dd> elements have no special processing, so the property value is just the text within the element.

A general rule is that the section element is appropriate only if the element’s contents would be listed explicitly in the document’s outline.

The sectioning elements act quite literally as their name suggests: they define sections of the parent element. These sections can be thought of as child nodes whose headings fall under their parent heading, regardless of their rank.

Sections may contain headings of any rank, but authors are strongly encouraged to either use only h1 elements, or to use elements of the appropriate rank for the section’s nesting level.

An article with a title and metadata

An article with a title and subtitle

An article with a title, subtitle and metadata

Breadcrumbs Again, I would say yes to this as well. Although breadcrumbs are not always necessary and can be used when not applicable, on large sites a breadcrumb trail can be an important navigation aid.

<input type="number"> elements do not support use of the pattern attribute for making entered values conform to a specific regex pattern.

inputs of type number support these attributes

A weblog-style <article> A published date leads us to add a <header>, and there’s also content that would be suitable in a <footer> elements. <article>  <header>    <h1>Apple</h1>    <p>Published: <time pubdate="pubdate">2009-10-09</time></p>  </header>  <p>The <b>apple</b> is the pomaceous fruit of the apple tree...</p>  ...  <footer>    <p><small>Creative Commons Attribution-ShareAlike License</small></p>  </footer></article>

Since there is no heading in the nav element, it becomes “Untitled NAV”.

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>

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>

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>

One important facet of <main> is that it can only be used once per page.

Another stipulation of <main> is that it can’t be used as a descendant of an <article>, <aside>, <footer>, <header>, or <nav> element.

To see an example of the <footer> within an article/section look no further than this very page.

<article>   Article content appears here.   <footer>   Footer information for article.   </footer></article>

There is a boolean attribute pubdate specifically for this

<time datetime="2010-01-20" pubdate>