Thank you Yigit
great instant help, impressed.
it is doing the trick !!!
great.
but still
I would like to do globally the same with; between categories of the Content Elements and main Content Elements; between elements on the side bar.
If you have a look now, it works on side bar but only between full width Layer Slider and the first widget on the top. I would like to reduce the space between each elements on the side bar.

Thank you, for your great support.

Thank you very much begrafiks
“tugun yechilay dedi”
I have done all your suggestions, it looks much better now. Incredible !

But still, I would like to save some space as much as possible.
In doing that, I would like to reduce the space between two Content Elements on the main content as well as on the side bar.
for eg. between Blog Posts and Portfolio Grid, which are “yashar..” and “Kutubxona” in my case.
you can see it on my home page http://tugun.org/