Property InsetLeft
InsetLeft
Gets or sets the distance from the box's left edge to its text (wps:bodyPr lIns),
or null when the markup states no body properties.
public Twips? InsetLeft { get; set; }Property Value
Remarks
A null inset is drawn as zero, and so is an attribute the body properties leave out: that is what layout has always done with these boxes, although Word's own default for a missing inset is a tenth of an inch on each side and five hundredths at the top and bottom.