s a line block.  It ends with a blank line.</div>
<div class="line-block">
<div class="line">Each new line begins with a vertical bar (“|”).</div>
<div class="line">Line breaks and initial indents are preserved.</div>
</div>
<div class="line">Continuation lines are wrapped portions of long lines;
they begin with a space in place of the vertical bar.</div>
<div class="line-block">
<div class="line">The left edge of a continuation line need not be aligned with
the left edge of the text above it.</div>
</d