JSFiddle - React, Tailwind, and code Playground
HTML
<div>
<div id="hide_iframe">Hidden IFrame:<br /><iframe src="http://www.w3schools.com/html/html_iframe.asp" frameborder="0" ></iframe>
</div>
<div id="show_iframe">
Shown IFrame:<br /><iframe id="show_iframe" src="http://www.w3schools.com/html/html_iframe.asp" frameborder="0" ></iframe>
</div>
</div>CSS
#hide_iframe {
visibility: hidden;
position: fixed;
z-index:100;
}
#show_iframe {
position:fixed;
z-index:100;
}