Hi Mac
The key with this is the fact that a graphic in Word that has "text flow" is anchored to a paragraph on the same page. And the graphic can be formatted to "Move with text" (up and down the page as the paragraph to which it is anchored moves) - or not. By
default, this option is on.
Unfortunately, you don't provide any information about which version of Word you're using, which means it's difficult for us to give you the exact path to this option...
Try right-clicking, then choose Format AutoShape (or something similar - near the bottom of the context menu). Go to the Layout tab, click Advanced (or whatever the button is labelled). In the Picture Position tab, look for the checkbox - it will be near
the bottom of the dialog box. Remove the check mark.
Note: I would probably insert a table with one column and two rows, then set the row heights to an "exact" measurement and apply a border only to the inner line between the two rows. This has a number of advantages, not least that you'll have to independent
paragraph marks. With the approach you're trying, you're not going to be able to copy/paste easily, as Word will need to "type" paragraph marks until the text goes past the position of the line before you can paste. Using a table would also avoid the problem
you're having currently.