layoutGridLine of type
Sets or retrieves the line height value used for rendering
the text content of an element. This property has a default value of
none. The other possible values are
none | auto | <length> | <percentage>
block-level elements, and table elements
Refer to parent object
Values have the following meanings:
Default. No line grid is set.
Largest character in the font is used to set the line height.
Floating point number, followed by units designator.
Integer, followed by percent sign (%).