1, open the table, click the upper left corner box--Select the table--pull rows and columns to fit the size--and then fill the gray
2, select an area--right click--Set cell format--border--check the thicker black line--point and left side lines--and then select White--point right and bottom line
3, select a cell in this area--right click--Set cell formatting--border--check the thicker black line--point right and bottom lines--and then select White--point and left line
4. Select this cell--hold and drag while holding down the ctrl--on the keyboard to copy this formatting to another cell
5, if this area is not good to see-can insert a column-and then the right side is not convex cells copied to the convex cells, and then the fourth step to copy the convex cells.
6, in the convex cell input text-click Right--Add a hyperlink, so a button is made