From http://www.w3schools.com (Copyright Refsnes Data)

HTML 5 <command> tag


Definition and Usage

The <command> tag defines a command button, like a radiobutton, a checkbox, or a button.


Differences Between HTML 4.01 and HTML 5

The <command> tag is new in HTML 5


Attributes

Attribute Value Description
checked true | false Defines if the command is checked or not. Use only if type is radio or checkbox
default true | false If true, the command is invoked. Use only if the command is inside a context menu
disabled true | false Defines if the command is available or not
hidden true | false Defines if the command is visible or not
icon url Defines the url of an image to display as the command
label command name Defines a name for the command. The label is visible
radiogroup name of radiogroup Defines the name of the radiogroup this command belongs to. Use only if type is radio
type checkbox
command
radio
Defines the type of command. Default value is command

Standard Attributes

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

For a full description, go to Standard Attributes in HTML 5.

Event Attributes

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

For a full description, go to Event Attributes in HTML 5.


From http://www.w3schools.com (Copyright Refsnes Data)