HTML Submit Button Outside The Form
For a HTML form element you can put your submit button outside of the form element as long as you have reference the form’s id property with the button’s form property.
<div>
<form id="a-form">
<label for="name">Name:</label>
<input type="text" name="name"></input>
</form>
<button type="submit" form="a-form">Submit</button>
</div>
Read more about forms here