Fumiki Takahashi

TAROSKY INC.

Add iframe block for block editor. 
WordPress editor sometimes cleans up <code>iframe</code> tag if the user is a contributor(single site) or an editor(multi site) who has no capability <a href="https://wordpress.org/support/article/roles-and-capabilities/#unfiltered_html" rel="ugc">unfiltered_html</a>.
This plugin simply add 1 custom block iframe block. That’s all and no config.
<h4>Features</h4>
<ul>
<li><code>iframe</code> tag not escaped.</li>
<li>Responsive supported.</li>
<li>Keep aspect ratio. Default is <code>16:9</code>.</li>
<li>Keep <code>iframe</code> unescaped even in multisite. If you have multiple writers in your site, this might help without any roles-and-capabilities knowledge.</li>
<li>Align full and align wide supported.</li>
</ul>

Taro iframe Block

Add iframe block for your editor. Responsive and keeping aspect ratio.

firimar

This basic plugin adds the Magnific Popup lightbox script to wordpress site and works with single images, iframe links and dialogs.
All you need to do to use Magnific Popup on a link is to add specific css class to ‘a’ tag. CSS class names can be configured on settings page.
For images you can use alt attribute to add captions.
Thanks to Dmitry Semenov for the original script: http://dimsemenov.com/plugins/magnific-popup/
This plugin is only basic version and does not support all features of Magnific Popup yet.
Plugin provides following functionality:
<ul>
<li>Single image popup.</li>
</ul>
Usage example html: 
 <a href="http://site.com/full-size.jpg" rel="nofollow ugc"></a>
<ul>
<li>Image gallery popup with navigation.</li>
</ul>
Usage example html:
 <a href="http://site.com/full-size-1.jpg" title="title1" rel="nofollow ugc"></a> 
 <a href="http://site.com/full-size-2.jpg" title="title2" rel="nofollow ugc"></a> 
 <a href="http://site.com/full-size-3.jpg" title="title3" rel="nofollow ugc"></a> 
 <a href="http://site.com/full-size-4.jpg" title="title4" rel="nofollow ugc"></a>
<ul>
<li>Iframe popup (can contain external page, youtube video, google map, etc.)</li>
</ul>
Usage example html: 
 <a href="http://www.youtube.com/watch?v=b0FhD19zj4I" rel="nofollow ugc">Video</a> 
 <a href="https://maps.google.com/maps?q=221B+Baker+Street,+London,+United+Kingdom&hl=en&t=v&hnear=221B+Baker+St,+London+NW1+6XE,+United+Kingdom" rel="nofollow ugc">Google Map</a>
<ul>
<li>Dialog popup (pops up a div from the current page)</li>
</ul>
Usage example html: 
 <a href="#dialog" rel="nofollow ugc">Dialog
 Test dialog content
 </a>

WP Magnific Popup

Plugin to add the Magnific Popup lightbox script to wordpress site for single images, image galleries, video, maps, dialog popups and other.

Taro iframe Block vs WP Magnific Popup