This is a simple demonstration of the box model. I have applied modifications to the margin, border, padding, and content levels of organization.
The heading has a 16px top and bottom margin and a 32px left and right margin. It also has a solid black border with a 4px width. I rounded the border using the border-radius. The padding is set to 16px. The background is green, and the text is white.
The paragraph level has a top and bottom margin of 32px and a left and right margin of 48px. It has a solid border with a 4px width and a background color of black. The padding is set to 16px, and the text is white.