Tailwind uses a consistent spacing scale based on 0.25rem (4px) increments:

• 0 = 0px
• 1 = 0.25rem (4px)
• 2 = 0.5rem (8px)
• 4 = 1rem (16px)
• 8 = 2rem (32px)
• 16 = 4rem (64px)

Examples:

• p-4 = padding: 1rem
• m-8 = margin: 2rem
• space-x-4 = gap of 1rem between child elements horizontally

This scale provides consistent spacing throughout your design.