What back-end system?

I didn't write for a week because I have been busy at my work.
Also, I've been reading a lot to understand all the differences between Cascading Style Sheets (CSS), (x)HTML (Extensible) HyperText Markup Language. I will give you an update later on.

Time is running and fast...I had some trouble to get started the website but now we are on the right path. Therefore, I can present you 3 open Source web-application we are investigating to create the website. Check the 3 screen shot below and I will explain you the differences later on..