To specify the thickness and type of a line for a shape outline, follow the steps below:
1.Single-click to select a shape or double-click to select a shape to enter its editing mode.
2.On the Home tab, in the Shape group, click the arrow to the right of the
Outline button.
3.In the Line weight box, select the desired outline thickness manually or using the buttons.
4.Select the outline line type from the preset values.