['dotted - Defines a dotted border.', 'dashed - Defines a dashed border.', 'solid - Defines a solid border.', 'double - Defines a double border.', 'groove - Defines a 3D grooved border. ... ', 'ridge - Defines a 3D ridged border. ... ', 'inset - Defines a 3D inset border. ... ', 'outset - Defines a 3D outset border.']