Markup Languages: More Than HTML5 - Web Standards: Mastering HTML5, CSS3, and XML - page 78

Table 3-8. HTML5 Attributes

Attribute Element(s) Description Value

abbr th Alternative label for header cell

(reference in different context)

Text

accept input Hint for expected file type in file

upload controls

Set of comma-separated
tokens

accept-charset form

Character encodings (form
submission)

Ordered set of unique space-
separated tokens (ASCII
case-insensitive)

accesskey HTML elements Keyboard shortcut to activate or

focus element

Ordered set of unique
space-separated tokens
(case-sensitive; one Unicode
codepoint)

action form URL (form submission) URL

alt area , img , input Alternate text for images or input

fields

Text

async script

Execute script asynchronously Boolean attribute

autocomplete form on | off Prevent autocompletion for form

control(s)

autocomplete input , select , textarea Hint for form autofill Autofill field name and

related tokens

autofocus button , input , keygen ,

select , textarea

Gives focus to form control
automatically when the page is
loaded

Boolean attribute

autoplay audio , video Media playback starts

automatically

Boolean attribute

border table Indication that the table element

is used for tabular data, not layout

Empty string or 1

challenge keygen String to package with the

generated and signed public key

Text

charset meta Character encoding declaration Preferred MIME name of an

encoding

charset script Character encoding of external

script file

Preferred MIME name of an
encoding

checked input Determines whether the control is

checked

Boolean attribute

cite blockquote , del , ins , q

Link to quotation source or
additional information

URL

class HTML elements Element class Set of space-separated tokens

( continued )