HTML and CSS Reference
In-Depth Information
• User agents that do not understand
<canvas>
should render the contents of the
element instead.
• It is possible to simulate the
<canvas>
tag under Internet Explorer using one of
numerous libraries such as Google's ExplorerCanvas (http://excanvas.sourceforge
.net/). Such libraries rely on the use of IE's proprietary VML (Vector Markup
Language) technology and are likely going to operate slowly given the required
translation as compared to a native
<canvas>
implementation.
• Chapter 2 has a discussion of
<canvas>
and its use with JavaScript.
<caption> (Table Caption)
This element is used within the
table
element to define a caption.
Standard Syntax
<caption
align="bottom | left | right | top" (transitional only)
class="class name(s)"
dir="ltr | rtl"
id="unique alphanumeric identifier"
lang="language code"
style="style information"
title="advisory text">
</caption>
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"
itemref="space-separated list of IDs that may contain microdata"
itemscope="itemscope"
itemtype="microdata type in URL format"
spellcheck="true | false"
tabindex="number"
Attributes Defined by Internet Explorer
accesskey="key" (5.5)
contenteditable="false | true | inherit" (5.5)
hidefocus="true | false" (5.5)
language="javascript | jscript | vbs | vbscript" (4)
tabindex="number" (5.5)
unselectable="on | off" (5.5)
valign="bottom | top" (4)
