<iframe src="URL" frameborder="0" width="100%" height="200">
<p>Your browser does not support iframes.</p>
</iframe>
<iframe frameborder="1|0">
(OR)
<iframe src="URL" width="100%" height="300" style="border: none">Your browser
does not support iframes.</iframe>
The <iframe> frameborder attribute is not supported in HTML5. Use CSS
instead.