If it was me doing it, I'd use a blockquote.
Code:
<blockquote>
<p>Line</p>
<p>Line</p>
<p>Line</p>
<p>Line</p>
</blockquote>
<blockquote>
<p>Line</p>
<p>Line</p>
<p>Line</p>
<p>Line</p>
</blockquote>
You can change the margins for a blockquote like so...
Code:
blockquote {
margin-top: 1em;
margin-bottom: 1em;
margin-left: 2em;
margin-right: 2em
}