The display of line endings.
String value of this property
A cap with a squared-off end which is drawn beyond the endpoint of the line at a distance of one-half of the line's width.
A cap with a rounded end which is drawn beyond the endpoint of the line at a radius of one-half of the line's width and centered on the endpoint of the line.
A cap with a squared-off end which is drawn to the exact endpoint of the line.