Primer

HTML

<blockquote class="quote-block quote-block-- quote-block--grey animate-right">
	<div class="quote-block__container">
		<p>&#039;Everything seemed hopeless, but I still prayed for a breakthrough.&#039;</p>
	</div>
</blockquote>

Twig

<blockquote class="quote-block quote-block--{{ position }} quote-block--{{ colour }} {{ animate }}">
	<div class="quote-block__container">
		<p>{{ quote }}</p>
	</div>
</blockquote>

{
    "colour": "grey",
    "quote": "'Everything seemed hopeless, but I still prayed for a breakthrough.'",
    "animate": "animate-right"
}

'Everything seemed hopeless, but I still prayed for a breakthrough.'