Fix extra space below second .sidebar

close #74
Fix homepage video title in iphone

close #75
Change the initial scale for responsive
Fix icon in the what's new section for iphone

close #76
Fix icon in title for featured volunteer

close #77
Fix max width for videos in content

close #78
Hide the sidebar on inner pages for mobile

close #79
Fix titles that use an image - mobile

close #80
Fix width of the video on into builds page

close #82