Form button not working in IE11

I have created a form with a submit button, the submit button is outside the actual form but its targeting the form using the form attribute for example.

<form id="myform">
</form>

<button form="myform"></button>

I apologize for the week example. This is working accross all browsers except IE 11. IE 8-10 is working 100%. Any ideas on how I can fix this. I prefer not writing scripts. I can do this with jQuery but I prefer to just keep it clean if possible