[a_lesanka]

can I use the video as the content in the presentation in your web-tool? I mean I didn't catch the point what is difference from other such applications for presentations

[dkaigorodov]

> I mean I didn't catch the point what is difference from other such applications for presentations

The main difference is that you can type the whole presentation without using a mouse/touchpad. The presentation looks nice out of the box.

Also, while typing you will think about your message and content. Not about how to adjust layout.

[dkaigorodov]

Yes, you can add YouTube video as a slide background. Just paste the video link to the text of the slide.