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    <button>

    Summary

    The HTML <button> Element represents a clickable button.

    Attributes

    This element includes the global attributes.

    autofocus HTML5
    This Boolean attribute lets you specify that the button should have input focus when the page loads, unless the user overrides it, for example by typing in a different control. Only one form-associated element in a document can have this attribute specified.
    autocomplete
    The use of this attribute on a <button> is nonstandard and Firefox-specific. By default, unlike other browsers, Firefox persists the dynamic disabled state of a <button> across page loads. Setting the value of this attribute to off (i.e. autocomplete="off") disables this feature. See bug 654072.
    disabled

    This Boolean attribute indicates that the user cannot interact with the button. If this attribute is not specified, the button inherits its setting from the containing element, for example <fieldset>; if there is no containing element with the disabled attribute set, then the button is enabled.

    Firefox will, unlike other browsers, by default, persist the dynamic disabled state of a <button> across page loads. Use the autocomplete attribute to control this feature.

    form HTML5
    The form element that the button is associated with (its form owner). The value of the attribute must be the id attribute of a <form> element in the same document. If this attribute is not specified, the <button> element must be a descendant of a form element. This attribute enables you to place <button> elements anywhere within a document, not just as descendants of their <form> elements.
    formaction HTML5
    The URI of a program that processes the information submitted by the button. If specified, it overrides the action attribute of the button's form owner.
    formenctype HTML5
    If the button is a submit button, this attribute specifies the type of content that is used to submit the form to the server. Possible values are:
    • application/x-www-form-urlencoded: The default value if the attribute is not specified.
    • multipart/form-data: Use this value if you are using an <input> element with the type attribute set to file.
    • text/plain

    If this attribute is specified, it overrides the enctype attribute of the button's form owner.

    formmethod HTML5
    If the button is a submit button, this attribute specifies the HTTP method that the browser uses to submit the form. Possible values are:
    • post: The data from the form is included in the body of the form and is sent to the server.
    • get: The data from the form are appended to the form attribute URI, with a '?' as a separator, and the resulting URI is sent to the server. Use this method when the form has no side-effects and contains only ASCII characters.

    If specified, this attribute overrides the method attribute of the button's form owner.

    formnovalidate HTML5
    If the button is a submit button, this Boolean attribute specifies that the form is not to be validated when it is submitted. If this attribute is specified, it overrides the novalidate attribute of the button's form owner.
    formtarget HTML5
    If the button is a submit button, this attribute is a name or keyword indicating where to display the response that is received after submitting the form. This is a name of, or keyword for, a browsing context (for example, tab, window, or inline frame). If this attribute is specified, it overrides the target attribute of the button's form owner. The following keywords have special meanings:
    • _self: Load the response into the same browsing context as the current one. This value is the default if the attribute is not specified.
    • _blank: Load the response into a new unnamed browsing context.
    • _parent: Load the response into the parent browsing context of the current one. If there is no parent, this option behaves the same way as _self.
    • _top: Load the response into the top-level browsing context (that is, the browsing context that is an ancestor of the current one, and has no parent). If there is no parent, this option behaves the same way as _self.
    name
    The name of the button, which is submitted with the form data.
    type
    The type of the button. Possible values are:
    • submit: The button submits the form data to the server. This is the default if the attribute is not specified, or if the attribute is dynamically changed to an empty or invalid value.
    • reset: The button resets all the controls to their initial values.
    • button: The button has no default behavior. It can have client-side scripts associated with the element's events, which are triggered when the events occur.
    value
    The initial value of the button.

    Example

    <button name="button">Click me</button>
    

    Please note that this button has CSS applied.

    Specifications

    Specification Status Comment
    WHATWG HTML Living Standard
    The definition of '<button>' in that specification.
    Living Standard  
    HTML5
    The definition of '<button>' in that specification.
    Recommendation  
    HTML 4.01 Specification
    The definition of '<button>' in that specification.
    Recommendation  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 1.0 1.0 (1.7 or earlier) (Yes) (Yes) (Yes)
    formaction attribute 9.0 4.0 (2.0) 10 ? ?
    formenctype attribute 9.0 4.0 (2.0) 10 10.6 ?
    formmethod attribute 9.0 4.0 (2.0) 10 ? ?
    autofocus attribute 5.0 4.0 (2.0) 10 9.6 5.0
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) 1.0 (1.0) (Yes) (Yes) (Yes)
    formaction attribute ? 4.0 (2.0) ? ? ?
    formenctype attribute ? 4.0 (2.0) ? ? ?
    formmethod attribute ? 4.0 (2.0) ? ? ?

    Clicking and focus

    Whether clicking on a <button> causes it to (by default) become focused varies by browser and OS. The results for <input> of type="button" and type="submit" were the same.

    Does clicking on a <button> give it the focus?
    Desktop Browsers Windows 8.1 OS X 10.9
    Firefox 30.0 Yes No (even with a tabindex)
    Chrome 35 Yes Yes
    Safari 7.0.5 N/A No (even with a tabindex)
    Internet Explorer 11 Yes N/A
    Presto (Opera 12) Yes Yes
    Does tapping on a <button> give it the focus?
    Mobile Browsers iOS 7.1.2 Android 4.4.4
    Safari Mobile No (even with a tabindex) N/A
    Chrome 35 ??? Yes

    Notes

    <button> elements are much easier to style than <input> elements. You can add inner HTML content (think <em>, <strong> or even <img>), and make use of :after and :before pseudo-element to achieve complex rendering while <input> only accepts a text value attribute.

    IE7 has a bug where when submitting a form with <button type="submit" name="myButton" value="foo">Click me</button>, the POST data sent will result in myButton=Click me instead of myButton=foo.
    IE6 has an even worse bug where submitting a form through a button will submit ALL buttons of the form, with the same bug as IE7.
    This bug has been fixed in IE8.

    Firefox will add, for accessibility purposes, a small dotted border on a focused button. This border is declared through CSS, in the browser stylesheet, but you can override it if necessary to add your own focused style using button::-moz-focus-inner { }

    Firefox will, unlike other browsers, by default, persist the dynamic disabled state of a <button> across page loads. Setting the value of the autocomplete attribute to off disables this feature. See bug 654072.

    Firefox <35 for Android sets a default background-image gradient on all buttons (see bug 763671). This can be disabled using background-image: none.

    See also

    Other elements that are used for creating forms: <form>, <datalist>, <fieldset>, <input>,<keygen>, <label>, <legend>, <meter>, <optgroup>, <option>, <output>, <progress>, <select>, <textarea>.