Improvements
Merge branch 'master' of https://github.com/virtualhackathons/virtualhackathons.github.io

# By Goran Sherko
# Via Goran Sherko (1) and xwiz (1)
* 'master' of https://github.com/virtualhackathons/virtualhackathons.github.io:
  updated css codes
  updated html codes