Apply shape outline to the text box

To shape outline to the text box, perform the following steps:
1. Click to select the text box that you want to apply the shape outline.
2. Under Drawing Tools, on the Format tab, in the Shape Styles group, click Shape Outline and do the following that suits you.

• a. Change the color of the border: Select a color from the Theme Colors, Standard Colors. For more colors, click More Outline Colors and select a color from the Colors dialog box. 
• b. Change the width or weight of the border: Point to Weight and make a selection. For custom setting of width, click More Lines and make the changes from the Format Shape dialog box. 
• c. Change the style of the border: Point to Dashes and make a selection. For custom style, click More Lines and make the changes from the Format Shape dialog box.