Relier Pairs Design Elements #1Version en ligne Test your knowledge of the basic elements of hair design. par Rosalind Carter 1 Transitional lines 2 diagonal lines 3 vertical lines 4 curved lines 5 single lines 6 parallel lines 7 directional lines 8 Contrasting lines 9 Horizontal lines Move in a circular or semi-circular direction. Repeating lines in a hairstyle. Lines with a definite forward or backward movement. Used in the one-length hairstyle. Create length and height in hair design. horizontal and vertical lines that meet at a 90-degree angle. Often used to emphasize or minimize facial features. curved lines that are used to blend and soften horizontal or vertical lines. create width in a hairstyle.