margin
Specifies the distance between the title and surrounding chart elements in pixels.
Use the fields of the margin object to set the required values for the left, right, top and bottom title margins separately. If you require title margins to be equal, assign a numeric value to the margin option.
bottom
Specifies the distance in pixels between the bottom side of the title and the surrounding chart elements.
left
Specifies the distance in pixels between the left side of the title and the surrounding chart elements.
right
Specifies the distance between the right side of the title and surrounding chart elements in pixels.