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