[Jellby]

Perfect. You just may need to adjust things slightly, depending on each poem/song layout (this one has a chorus that's indented, another one may have alternating indents, or a different pattern).

I'm not sure you understand my point about shortcut margins. I suggested:

margin: 0;
margin-left: 1em;

Note: "margin", not "margin-bottom". The idea is then you don't need "margin-right" and "margin-top". You could have a single "margin: 0 0 0 1em" too, but that's not so readable when/if you just want to change the left margin.

If you want to be even smarter:

<div class="verse">
<p>...
<p>...
</div>

<div class="verse chorus">
<p>...
<p>...
</div>

Now the "chorus" is a "verse" too, so you don't need to repeat stuff:

.verse {
    margin-bottom: 0.5em;
    }
.verse p {
    margin: 0;
    margin-left: 1em;
    text-indent:-1em;
    }
.chorus p {
    margin-left: 2em;
    }