Alphabetical List of Elements - HTML5 - page 114

min=" number or string number or string "

Not in HTML 4.01 . Specifies the lower boundary of the accepted value range for the ele-
ment. The min value defines the base for step operations. Applies to input types number ,
range , date , time , datetime , datetime-local , month , and week .

multiple ( multiple="multiple" in XHTML)
Not in HTML 4.01 . Indicates the user is allowed to specify more than one value. Applies
to file and email input types.

name=" text text "

Assigns a name to the control; a script program uses this name to reference the control.

pattern=" JavaScript regular expression JavaScript regular expression "

Not in HTML 4.01 . Specifies a regular expression against which the control's value is to
be checked. This is useful for making sure user input matches the format of the expected
value, for example, a telephone number or an email address. The title attribute can be
used with pattern to provide a description of the expected pattern/format of the input.
Applies to text , password , email , tel , search , and url input types.

placeholder=" number number "

Not in HTML 4.01 . Provides a short (one word or short phrase) hint or example to help
the user enter the correct data or format. If a longer description is necessary, use the title
attribute. Applies to text , password , email , tel , search , and url input types.

readonly ( readonly="readonly" in XHTML)

Indicates that the form input may not be modified by the user. Applies to text , password ,
email , tel , search , url , number , date , time , datetime , datetime-local , month , and
week .