A submit button is an element in HTML that can be used to submit a <form>. The native submit button elements are:
<button> (its default type is "submit")<input type="submit"><input type="image">In addition to submitting a form, a submit button can affect the form's behavior and what data is sent.
Submit buttons can override the form's submission behavior through various attributes:
formaction: Override the action attribute of the form.formenctype: Override the enctype attribute of the form.formmethod: Override the method attribute of the form.formnovalidate: Override the novalidate attribute of the form.formtarget: Override the target attribute of the form.If the submit button is a <button> or <input type="submit"> and has a name attribute, the form data set will include an entry for its name and value.
If the submit button is an <input type="image">, the form data set will include entries for the X and Y coordinates that the user clicked on (e.g., x=100&y=200 or buttonName.x=123&buttonName.y=234).