set a button to submit a form code example

Example 1: how to submit a form with submit button outside form

<div>
  <form id="my-form">
    <label for="name">Name:</label>
    <input type="text" name="name"></input>
  </form>

  <!-- ... -->

  <button type="submit" form="my-form">Submit</button>
</div>

Example 2: submit button

<button type="submit" form="form1" value="Submit">Submit</button>