Take Word2007 as an example to bold the header horizontal line:
1. Enter the header editing state, switch to the "Start" bar, open the drop-down menu of the border, and click "Border and shading..."
2. Modify the style of the horizontal line and the point value of the width, for example, change it to 1.5 points
3. Select the header text, and then click "Lower Border Line" in the border setting drop-down menu
4. Header horizontal line The thickness modification has been completed.
For more word-related technical knowledge, please visit the Word Getting Started Tutorial column to learn!
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