You can click insert shape in this word. Then select a shape and choose a shape style. In the shape and style interface that appears, just modify the color and point value of the box. The specific setting method is as follows:

1. Open this version of WORD in your computer, click Insert in the menu bar, and then select the drop-down arrow of the shape.

2. Select a rectangle from the options that appear.

3. Draw a rectangular box with the required size in the WORD page.

4. Select the rectangular check box, and then click Format on the menu bar. In the summary of options that appears, click the shape style you want to enter.

5. In the shape and style settings dialog box that appears, click the color drop-down arrow below the line, and then select green.

6. Change the number after the line thickness to 3 points, and then click OK.

7. At this point, you can see that you have finished drawing the 3-pound green border by setting the shape style.