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Form button

This element is used to create a button that can be used in combination with scripts.

<button
    accesskey="key"
    class="class name(s)"
    dir="ltr | rtl"
    disabled
    id="unique identifier"
    lang="language code"
    name="unique identifier"
    style="style information"
    tabindex="number"
    title="text"
    type="button | reset | submit"
    value="text"
>
</button>

Key:
‡ = Required attribute
** = Transitional only

Explanation of attributes

accesskey: used to define a key on the keyboard that can be used to select this element. This generally depends on the browser and operating system being used.

class: used to state which class(es) the element belongs to. It is possible to indicate more than one class for an element by separating each class name with a space character. This attribute is normally used in combination with a stylesheet in order to associate the elements with particular styles defined within the stylesheet.

dir: used to set the direction of the text in combination with the language set in the lang attribute. The available values are "ltr" (left to right) and "rtl" (right to left), with the default value being "ltr".

disabled: used to declare that the button should not be able to be pressed. As there is only one value for the disabled attribute, it is shorted to an attribute without a specified value.

id: used to specify a unique alphanumeric identifier to the element. This is usually used in combination with stylesheets in order to apply a style to one particular instance of an element. Only one element, regardless of type, can be given a particular id.

lang: used to indicate the language being used in the text contained within the element. The value of this attribute takes on the form of the ISO standard lanuage abbreviations found in RFC 3066. A list of these codes can be found on the ISO language codes page.

name: used to identify the button in the form handler specified in the form element to which the button is assigned.

style: used to specify an inline style to apply to the element. The styles defined here override the styles declared in the header section.

tabindex: used to define the elements position in the tabbing order of the document. This attribute contains a number, which a traversed in order by using the TAB key.

title: used to define an advisory text that may be displayed as a tooltip when a mouse is used to hover over the element.

type: used to specify the type of button being used. The value can be "button", which is a standard button, "reset", which acts as a reset to the form, or "submit", which causes the form to be submitted. The default value of this attribute is "submit".

value: the value of the button passed to the form handler along with the name attribute of the button.

Event handlers

The following event handlers are defined for this element:

Basic example

<button type="button">I am a button</button>

The above code will display something like:

Compatibility

Description: Support of form button and attributes in various browsers
Test Internet Explorer 6+ Netscape 4 Mozilla and Netscape 6+ Opera 6+ MSN TV (WebTV) Konqeuror 3.0+
Basic element support  Yes  No  Yes  Yes  Yes  No 
Attribute: accesskey  Yes  No  Yes  Yes  No 
Attribute: class  Yes  No  Yes  Yes  No 
Attribute: dir  Yes  No  No  No  No 
Attribute: disabled  Yes  No  Yes  Yes  No 
Attribute: id  Yes  No  Yes  Yes  No 
Attribute: lang  Yes  No  No  No  No 
Attribute: name  Yes  No  Yes  Yes  No 
Attribute: style  Yes  No  Yes  Yes  No 
Attribute: tabindex  Yes  No  Yes  Yes  No 
Attribute: type  Yes  No  Yes  Yes  No 
Attribute: title  Yes  No  Yes  Yes  No  No 
Attribute: value  Yes  No  Yes  Yes  No 

Key:
The browser icons are explained in the below list:
Internet Explorer 6+ = Microsoft Internet Explorer 6+
Netscape 4 = Netscape Communicator 4
Mozilla and Netscape 6+ = Mozilla and Netscape Navigator 6+
Opera 7+ = Opera 7+
MSN TV (WebTV) = MSN TV (aka. WebTV)
Konqeuror 3.0+ = Konqueror 3.0+