The outer blue box has `p-6` for internal spacing.
This box has `p-4` (padding) and `m-4` (margin).
Notice the space around it (margin) and inside it (padding).
This box has `p-2` (padding) and `m-2` (margin).
A smaller, consistent spacing using Tailwind's scale.
This box has `p-4` (padding) but no explicit margin in this context.
Its spacing relative to siblings is determined by their margins.