Which design element refers to the width or height of components?

• A. Line
• B. Size
• C. Space
• D. Value

Answer: (B)

Size is the design element that describes how big or small something is, including its width and height. This dimension controls how prominent an element appears, helping establish visual hierarchy—larger items grab attention while smaller ones recede. When you adjust size, you’re directly shaping impact and relationships within the composition. By comparison, a line is a mark with length, space is the area around or between elements, and value is the lightness or darkness of a color. So the width and height of components are defined by size.