Css in flash

Hi i have read one of the tutorial about css in flash my dificulty is.

instead of using this variable
var quick = “<br><p class=‘one’>The quick Kirupa jumps over the lazy dog.</p><br><p class=‘two’>The quick Kirupa jumps over the lazy dog.</p><br><p class=‘three’>The quick Kirupa jumps over the lazy dog.</p><br><p class=‘four’>The quick Kirupa jumps over the lazy dog.</p>”

i have a xml file
<empresa>
<descricao>
<p class=‘one’>O paulo foi comprar</p>nete meio<p class=‘four’>ananas a loja do pingo doce</p>
</descricao>
</empresa>
that i put inside the fla like this
output.htmlText= quick= my_xml.firstChild.childNodes[0].childNodes[0].childNodes;

its put the right text but without css format.

thanks