In CSS, what does the "margin" property control?

The margin property in CSS is specifically designed to control the space outside an element. This means it defines the area around the element, creating space between that element and other adjacent elements. When you apply margins to an element, you can adjust how far away it is from surrounding elements or the edges of its parent container, effectively influencing the layout of the page.

The margin property allows you to set values for all four sides of an element - top, right, bottom, and left - either individually or collectively, depending on how you choose to define them. This is essential for spacing and aligns elements within the design of a web page.

Understanding the distinction between "margin" and "padding" is crucial; while margin pertains to the space outside of an element, padding controls the space within an element, between the content and its border. This differentiation highlights why the margin property is the correct answer in this context.