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HTML 5 <button> Tag

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The HTML <button> tag is used for creating a button control.

Although this tag is often used in conjunction with the <form> tag, it can also be used as a standalone control.

Example

Modify the code below, then click "Update". See below for attributes.

Source CodeResult

Attributes

HTML tags can contain one or more attributes. Attributes are added to a tag to provide the browser with more information about how the tag should appear or behave. Attributes consist of a name and a value separated by an equals (=) sign, with the value surrounded by double quotes. Here's an example, style="color:black;".

There are 3 kinds of attributes that you can add to your HTML tags: Element-specific, global, and event handler content attributes.

The attributes that you can add to this tag are listed below.

Element-Specific Attributes

The following table shows the attributes that are specific to this tag/element.

AttributeDescription
actionSpecifies the URL of the file that will process the control when submitted.
autofocusAutomatically gives focus to this control when the page loads. This allows the user to start using the control without having to select it first. There must not be more than one element in the document with the autofocus attribute specified.

This is a boolean attribute. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace (i.e. either autofocus or autofocus="autofocus").

Possible values:

  • [Empty string]
  • autofocus
disabledDisables the control. Therefore, if the user tries to use the control, nothing will happen.

This is a boolean attribute. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace (i.e. either disabled or disabled="disabled").

Possible values:

  • [Empty string]
  • disabled
enctypeSpecifies the content type used to encode the form data set when it's submitted to the server.

Possible values:

  • application/x-www-form-urlencoded (default)
  • multipart/form-data (use this when uploading files)
  • text/plain (use this when uploading files)
formSpecifies the ID of a form to which this control belongs.

Possible values:

[The ID of a form element in the element's owner Document]

methodSpecifies the HTTP method to use when the control is submitted.

Possible values:

  • get (the form data is appended to the URL when submitted)
  • post (the form data is not appended to the URL)
  • put
  • delete
nameAssigns the name of the control.
novalidateSpecifies that the form is not to be validated during submission.

This is a boolean attribute. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace (i.e. either novalidate or novalidate="novalidate").

Possible values:

  • [Empty string]
  • novalidate
targetSpecifies the browsing context to load the destination indicated in the action attribute.

Possible values:

  • _blank
  • _self
  • _top
  • _parent
typeSpecifies the type of button.

Possible values:

  • submit Submits the form. This is the default value.
  • reset Resets the form.
  • button Does nothing. You can use JavaScript to make the control actually do something.
valueAssigns an initial value to the control. This attribute must only be present if the form attribute is present.

Global Attributes

The following attributes are standard across all HTML 5 tags.

class id style
contenteditable irrelevant tabindex
contextmenu lang template
dir ref title
draggable registrationmark  

For a full explanation of these attributes, see HTML 5 global attributes.

Event Handler Content Attributes

Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.

Here are the standard HTML 5 event handler content attributes.

onabort ondragover onmousemove
onbeforeunload ondragstart onmouseout
onblur ondrop onmouseover
onchange onerror onmouseup
onclick onfocus onmousewheel
oncontextmenu onkeydown onresize
ondblclick onkeypress onscroll
ondrag onkeyup onselect
ondragend onload onstorage
ondragenter onmessage onsubmit
ondragleave onmousedown onunload

For a full explanation of these attributes, see HTML 5 event handler content attributes.

Also see the HTML 4.01 tags


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