[bookman156]

I was annoyed that long lines in poems, when they broke, would look like a new line, I was using br tags.

Then it dawned on me how to get the broken bit to indent. Just do this:

p.poem {
    text-indent: -1em;
    margin-left: 1em;
}

<p class="poem">This is a poetry line</p>
<p class="poem">This is a long long long poetry line</p>
<p class="poem">This is an long long even longer long poetry line</p>