Lightbox

Image

Code

[lightbox href="/path/to/your/image.jpg" title="Cat"][button]Show Image[/button][/lightbox]

IFrame

Code

[lightbox href="http://mothemes.com/" iframe="true"][button]Open mothemes.com[/button][/lightbox]

Block

Code

[lightbox href="#lightbox-block" inline="true"][button]Show Map[/button][/lightbox]
<div id="lightbox-block" class="mfp-hide" style="width: 600px; height: 400px; margin: 0 auto;">
	[gmap address="Moscow" width="600" height="400"]
</div>