webvitalii

<ul>
<li><a href="https://r.freemius.com/13759/8047958/" title="Advanced iFrame" rel="nofollow ugc">Advanced iFrame</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/iframe/" title="Plugin page" rel="nofollow ugc">iframe</a></li>
<li><a href="http://web-profile.net/donate/" title="Support the development" rel="nofollow ugc">Donate</a></li>
<li><a href="https://github.com/webvitalii/iframe" title="Fork" rel="nofollow ugc">GitHub</a></li>
</ul>
[iframe src=”http://www.youtube.com/embed/7_nAZQt9qu0″ width=”100%” height=”500″] shortcode 
should show something like this:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/7_nAZQt9qu0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
WordPress removes iframe html tags because of security reasons. 
Iframe shortcode is the replacement of the iframe html tag and accepts the same params as iframe html tag does. 
You may use iframe shortcode to embed content from YouTube, Vimeo, Google Maps or from any external page.
If you need to embed content from YouTube, Vimeo, SlideShare, SoundCloud, Twitter via direct link, you may use <code>[embed]http://www.youtube.com/watch?v=7_nAZQt9qu0[/embed]</code> shortcode. 
[embed] shortcode is a core WordPress feature and can <a href="https://codex.wordpress.org/Embeds" rel="nofollow ugc">embed content from many resources via direct link</a>.
Important: You can not embed HTTP pages into HTTPS pages and vice versa. 
So the protocol (http or httpS) for parent and embedded page should match.
<h4>iframe params:</h4>
<ul>
<li>src – source of the iframe: <code>[iframe src="http://www.youtube.com/embed/7_nAZQt9qu0"]</code>; by default src=”http://www.youtube.com/embed/7_nAZQt9qu0″;</li>
<li>width – width in pixels or in percents: <code>[iframe width="100%"]</code> or <code>[iframe width="600"]</code>; by default width=”100%”;</li>
<li>height – height in pixels: <code>[iframe height="500"]</code>; by default height=”500″;</li>
<li>scrolling – with or without the scrollbar: <code>[iframe scrolling="no"]</code>; by default scrolling=”yes”;</li>
<li>frameborder – with or without the frame border: <code>[iframe frameborder="0"]</code>; by default frameborder=”0″;</li>
<li>marginheight – height of the margin: <code>[iframe marginheight="0"]</code>; removed by default;</li>
<li>marginwidth – width of the margin: <code>[iframe marginwidth="0"]</code>; removed by default;</li>
<li>allowtransparency – allows to set transparency of the iframe: <code>[iframe allowtransparency="true"]</code>; removed by default;</li>
<li>id – allows to add the id of the iframe: <code>[iframe id="custom_id"]</code>; removed by default;</li>
<li>class – allows to add the class of the iframe: <code>[iframe class="custom_class"]</code>; by default class=”iframe-class”;</li>
<li>style – allows to add the css styles of the iframe: <code>[iframe style="margin-left:-30px;"]</code>; removed by default;</li>
<li>same_height_as – allows to set the height of iframe same as target element: <code>[iframe same_height_as="div.sidebar"]</code>, <code>[iframe same_height_as="div#content"]</code>, <code>[iframe same_height_as="body"]</code>, <code>[iframe same_height_as="html"]</code>; removed by default;</li>
<li>any_other_param – allows to add new parameter of the iframe <code>[iframe any_other_param="any_value"]</code>;</li>
<li>any_other_empty_param – allows to add new empty parameter of the iframe (like “allowfullscreen” on youtube) <code>[iframe any_other_empty_param=""]</code>;</li>
</ul>

iframe

[iframe src="http://www.youtube.com/embed/7_nAZQt9qu0" width="100%" height="500"] shortcode

Tiago Rodrigues

<a href="http://wpgate.com.br" rel="nofollow ugc">WP Video Floater</a> WordPress Plugin allows you to insert a video on the page and, as the user scrolls the page, the video will be pushed to the bottom-right. Works with OptimizePress Embed videos too.
<h3>Key features</h3>
<ul>
<li>Sell more! Allows your visitor to watch your video and see your content at the same time.</li>
<li>You don’t have to edit source code of your template to insert any code.</li>
<li>No coding, just 2 easy steps and you’ll have an awesome page!</li>
</ul>
<h3>To use it you’ll need to add a class to the iframe that you want to scroll and add the shortcode below to anywhere in the page.</h3>
Class to the video: 
 wp-video-floater
Shortcode to the page: 
 [wp-video-floater]
<h3>Works with OptimizePress. The plugin works nice with OP pages. You’ll need to do the same thing above, but also you’ll need to add a class to the element.</h3>
There’s a settings icon on each element on the top-right, if you click you’ll see an “Advanced element options” popup and then you’ll be able to add the class below
Class to the OP element: 
 wp-video-floater

WP Video Floater

This plugin will allow you to keep your videos playing floating at the bottom of the page as you scroll down.

iframe vs WP Video Floater