Form Attributes in HTML

<!-- Input attributes: required (must fill), disabled (cannot edit), readonly (select not edit), autofocus (focus on load), autocomplete, pattern (regex validation) -->
<input type="text"
  required
  disabled
  readonly
  autofocus
  autocomplete="on"
  placeholder="Hint text"
  pattern="[A-Z]{3}"
  title="Three uppercase letters">

<!-- Form attributes: action (where to send), method (GET/POST), enctype (multipart for file uploads), autocomplete, novalidate (skip HTML5 validation) -->
<form
  action="/submit"
  method="POST"
  enctype="multipart/form-data"
  autocomplete="off"
  novalidate>

<!-- Button types -->
<button type="submit">Submit Form</button>
<button type="reset">Clear Form</button>
<button type="button">Just a Button</button>