The header is separated from the body by a blank line.
There are blank lines at the bottom of the form to accommodate this.
Page numbers have been left in, but each separated by a blank line from the surrounding material.
There must be a blank line at the end.
For extra clarity, blank lines may also be inserted between the two parts.
There was a click, and the buzz of a blank line.
Maybe blank lines make them feel more at home.
A blank line is appended to the end of each message.
The rest of the time they'll be deleted, leaving only a blank line.
He took a paper from another stack, wrote a number on a blank line.