Marco Alka that seems to solve my issue. I think I will use your solution. Thank you very much.

Yes you are right, the way I presented the info it makes no sense to use a Js library. Here I have put the demo online http://tok.al/test/ . So you scroll for 1000 pixels and the element show on fade. I want them to show using some other forms too (movements), which I agree can be done with css only. But after ending 1000pixels I want to go o the next container which will have it's own animations. I feel that with the ScrollMagic plugin (or with Javascript in general) I will have more control over the situation. What do you think?

I can't simply do it with a fixed background. This needs to be done in Javascript. The ScrollMagic plugin looks fine for this, but I can't seem to make it work, or it requires a bigger learning curve. What I have done until now is when you scroll down, then elements display from opacity 0 to 1 in a fade transition. I wan't also to make some movements of the displayed elements. For example lets say from 400px to 700px I want the absolutely possitioned element to do a zigzag.

I totally agree, but in this case it will be a intranet thing.

Will CSS go SASS only? Meaning that browsers will supports SASS?

Yes they are. But I think that's how it should be. With hardware becoming cheaper and cheaper we can allow ourselves to be lazy.

What is needed to make exceptional websites that make it in www.awwwards.com?

We all feel like this from time to time. Take some time off your job Learn something new (non programming related). Something like martial arts? Paragliding? Spend time going out in bars, be with people.

Thanks. That makes sense. It's just a carousel inside a modal. Forgot to think out of the box :-)

Great! Works perfectly. Thanks :-)