1. Attributes for form submission

    Attributes for form submission that may be specified on submit buttons. The attributes are: `formaction`, `formenctype`, `formmethod`, `formnovalidate`, and `formtarget`

  2. htmlbuttonelement api: formmethod

  3. htmlinputelement api: formmethod

  4. html element: button: formmethod

  5. html element: input: attributes: formmethod