Youtube instead Vimeo in Text Widget

Hi,
In (M)Social Wordpress Theme - TEXT WIDGET
I want to input this code:
<iframe width="560" height="315" src="//www.youtube.com/embed/x9GPnzrEiRk?rel=0" frameborder="0" allowfullscreen></iframe>
but it doesn't work.... Why??
Can you help me, please?

Thank you

Hi,

Where exactly do you want to use this video? inside the Grid?
This is the correct text widget for video from youtube:

Code: Select all

<div class=gk-video"><iframe class="youtube-player" type="text/html" width="640" height="385" src="http://www.youtube.com/embed/k0wTHj1zAOY" allowfullscreen frameborder="0"></iframe></div>

Description of the widget is available here:
https://gavick.com/magazine/how-does-gk ... -work.html

Hi,
yes in the grid ... but I doesn't work anyway.
I can see only a black rettangle ...

Can you help me?
Thanks
a.

Could you provide na URL to your website? (here or via PM)