MarginBottom Property [Excel 2003 VBA Language Reference]

Returns or sets the distance (in points) between the bottom of the text frame and the bottom of the inscribed rectangle of the shape that contains the text. Read/write Single.

Example

This example adds a rectangle to myDocument, adds text to the rectangle, and then sets the margins for the text frame.

Set myDocument = Worksheets(1)
With myDocument.Shapes.AddShape(msoShapeRectangle, _
        0, 0, 250, 140).TextFrame
    .AutoMargins = False
    .Characters.Text = "Here is some test text"
    .MarginBottom = 0
    .MarginLeft = 100
    .MarginRight = 0
    .MarginTop = 20
End With

Applies to | TextFrame Object