HTML and CSS Reference
In-Depth Information
onkeypress, onkeyup, onload, onloadeddata, onloadedmetadata, onloadstart,
onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onmousewheel,
onpause, onplay, onplaying, onprogress, onratechange, onreadystatechange,
onscroll, onseeked, onseeking, onselect, onshow, onstalled, onsubmit,
onsuspend, ontimeupdate, onvolumechange, onwaiting
Example
<details onclick="this.open='open';">
<dt>
Help?
</dt>
<dd>
<p>
This could give you help with HTML5 but we need more implementations to
prove how things will work.
</p>
</dd>
</details>
Compatibility
HTML5 Not currently supported by any browser, but addressed with a custom element.
Notes
• This element may contain one
dt
element describing the caption of the detailed
content, and one
dd
element, which contains the content to show.
• In early drafts of HTML5 specification, the
legend
element was used instead of the
dt
and
dd
elements added later.
<dfn> (Definition)
This inline logical element encloses the defining instance of a term. It usually is rendered as
bold or bold italic text.
Standard Syntax
<dfn
class="class name(s)"
dir="ltr | rtl"
id="unique alphanumeric identifier"
lang="language code"
style="style information"
title="advisory text">
</dfn>
Attributes Introduced by HTML5
accesskey="spaced list of accelerator key(s)"
contenteditable="true | false | inherit"
contextmenu="id of menu"
data-X="user-defined data"
draggable="true | false | auto"
hidden="hidden"
itemid="microdata id in URL format"
itemprop="microdata value"
