HTML and CSS Reference
In-Depth Information
accept="
MIME type
MIME type
"
Specifies a comma-separated list of content types that a server processing the form will
handle correctly. It can be used to filter out nonconforming files when prompting a user to
select files to send to the server. Applies to the
file
input type only.
alt="
text
text
"
Specifies alternative text for an image used as a button. Applies to the
image
input type.
autocomplete="on|off"
Not in HTML 4.01
. Allows the user agent (browser) to fill in a field automatically (
on
) or
requires the user to enter the information every time (
off
). Omitting this attribute causes
thecontroltoinheritthe
autocomplete
settingfortheassociated
form
element.Appliesto
input types
text
,
password
,
email
,
tel
,
search
,
url
,
number
,
range
,
date
,
time
,
dat-
etime
,
datetime-local
,
month
,
week
, and
color
.
autofocus
(
autofocus="autofocus"
in XHTML)
Not in HTML 4.01
. Indicates the control should have focus (be highlighted and ready for
user input) when the document loads. Applies to all input types.
checked
(
checked="checked"
in XHTML)
When this attribute is added to a radio button or checkbox input, the input will be checked
when the page loads. Applies to the
checkbox
and
radio
input types.
dirname="
text string
text string
"
Not in HTML 4.01
. Enables the submission of the directionality of the element (
ltr
or
rtl
) by providing the name of the field that contains the value. This could enable a form
to have a user-selected direction setting for form entries. Applies to the
text
and
search
input types.