More ideas from Piotr
unnamed.jpg (Obraz JPEG, 1060 × 175 pikseli)

unnamed.jpg (Obraz JPEG, 1060 × 175 pikseli)

https://scontent-waw1-1.xx.fbcdn.net/v/t1.0-9/15578679_10154711030416827_5890948352220491868_n.jpg?oh=9c89057c749ebaf7f1e2ba5728d77c61&oe=58F97E35

https://scontent-waw1-1.xx.fbcdn.net/v/t1.0-9/15578679_10154711030416827_5890948352220491868_n.jpg?oh=9c89057c749ebaf7f1e2ba5728d77c61&oe=58F97E35

http://i1.wp.com/lolbaba.com/wp-content/uploads/2015/03/IMG-20150325-WA0004.jpg?w=480

The difference between "Back-end" and "Front-end" simplified!