Page 1: Input your name

Page 2: Display eight envelopes

• Including 1 bag for configuring the puzzle, decoding, receiving 1 cup of coffee and sending email notification to email 1 bag to go to the next page
• The rest is a puzzle
• Each time the page loads, it is randomized

Page 3: Display two button: "chê nha!" and "nhận lì xì" with random of position

• If user hover/click on the "nhận lì xì" button, randomly the position
• If the user clicks the cancel button four times, show the QR code to user donate.

Should have animation "fireworks" or "congratulation" when click on button.