Hi, Dear Yigit
before the my website is (like your website this link function : https://kriesi.at/themes/enfold-2017/portfolio-item/ipad-iphone-freebie/.

After a period of time found my Portfolio Items don‘t no what out Function.
below my website :
http://www.xnet-biz.com/portfolio-item/ikidsempire/

is the theme problem ?
or what ?
waiting your reply.

1: make home page to full screen, no need to scroll down,
because I cannot see the social media buttons can solve this problem ?

2: how to abject the maps hight ?
http://craftiviti.com/wp-content/uploads/2016/06/Capture.png