document.body.appendChild(canvas);
<div class="video">
<video id="bg-globe" loop muted autoplay playsinline class="fullscreen-bg_video hidden-xs" poster="img/world-preview.png">
<source src="video/world-header.webm" type="video/webm">
<source src="video/world-header.mp4" type="video/mp4">
<source src="video/world-header.3gp">
<!--<img src="img/world-preview.png">-->
</video>
</div>
<form name="calculator_form">
<input type="number">
<input type="checkbox">
<input type="radio">
</form>
document.forms.calculator_form.reset();
<form autocomplete="off">...</form>
<input ... autocomplete="off">