Organize common and new properties of forms in HTML5

The <form> and <input> tags of HTML5 have added several new properties.

<form>New properties:

autocomplete

novalidate

<input>New property:

autocomplete

autofocus

form

Formaction

Formenctype

Formethod

formnovalidate

formtarget

height and width

list

min and max

multiple

pattern (regexp)

placeholder

required

step

The autocomplete property specifies that the form or input domain should have automatic completion functions.

When the user starts typing in the AutoComplete field, the browser should display the filled-in options in that field.

Tip: The autocomplete attribute may be enabled in the form element and closed in the input element.

Note: autocomplete is suitable for <form> tags, as well as the following types of <input> tags: text, search, url, telephone, email, password, datepickers, range, and color.

Example

Turn on autocomplete in HTML form (a input field closes autocomplete):