remove unknow blank area in html

[sourserv]

I have two pages on my website. I tried to make it so that they had the same appearance but they do not.This page has a blank area at top of page. Please, show me how to remove it. I cannot find what HTML code is causing this blank area.http://ec2-50-17-62-126.compute-1.amazonaws.com/dev/chia-se-dia-diemThis page is normal without unexpected blank areahttp://ec2-50-17-62-126.compute-1.amazonaws.com/devThank You!