Horizontal and vertical line
Both horizontal and vertical lines automatically expand their size to the maximum length that is possible at the current position.
These properties are available:
- Left
 - Specify the position of the line from the left side of the layout.
 - Top
 - Specify the position of the line from the top of the layout.
 - Width / Height
 - Specify the width or height of the line, in columns or lines.
 - Left end / Right end
 - Specify the ending of a horizontal line, to connect corners to other lines.
 - Line thickness
 - Specify the thickness of the line as a length.
 - Line style
 - Specify the style of the line: solid, dashed or dotted.
 - Color
 - Specify the color of the line.