Complex Gradient Background (Legacy)
Precents instead of viewport units, inline-blocks and fixed positioning instead of flexbox.
Flexbox implementation: http://cssdeck.com/labs/5jjege6l
Precents instead of viewport units, inline-blocks and fixed positioning instead of flexbox.
Flexbox implementation: http://cssdeck.com/labs/5jjege6l
(Errors from your JS or Pre-Processors code)