This only works in Opera (for now).
When using an inline quote to refer to a poem, the lines are conventionally separated by /
characters. Check the code! The <br> tag is still there, but it no longer causes a carriage return:
In I strove with none, Walter Savage Landor implores us not to allow petty conflicts to interfere with
our enjoyment of nature and art:
I strove with none, for none was worth my strife.
Nature I loved and, next to Nature, Art…