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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <a href="">Why I put this poem in li tags</a>

<section id="poem">
    <li>Yo sé un himno gigante y extraño</li>
    <li>que anuncia en la noche del alma una aurora,</li>
    <li>y estas páginas son de este himno</li>
    <li>cadencias que el aire dilata en las sombras. </li>

    <li>Yo quisiera escribirlo, del hombre</li>
    <li>domando el rebelde, mezquino idioma,</li>
    <li>con palabras que fuesen a un tiempo</li>
    <li>suspiros y risas, colores y notas. </li>

    <li>Pero en vano es luchar; que no hay cifra</li>
    <li>capaz de encerrarlo, y apenas, ¡oh hermosa!</li>
    <li>Si, teniendo en mis manos las tuyas,</li>
    <li>pudiera, al oído, cantártelo a solas.</li>

<section style id="output">

<button onclick="txtChange()" type="button" name="button">Show Result</button>
                ul {list-style: none;}

strong {
  color: red;

.huge {

                function txtChange() {

  var lines = document.getElementById('poem').innerHTML;
  var result = lines.replace(/Yo sé/g, '<strong>I know</strong>')
                    .replace(/suspiros/g, '<strong>sighs</strong>')
                    .replace(/noche/g, '<a href=""><span class="huge">night</span></a>');

  document.getElementById("output").innerHTML = result;
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