Update CSS to new standards

src/epub/css/core.css

@@ -50,7 +50,7 @@ hgroup > *:first-child{
 	font-weight: bold;
 }
 
-blockquote + p,
+p.continued,
 h2 + p,
 h3 + p,
 h4 + p,

src/epub/text/mamouche.xhtml

@@ -62,7 +62,7 @@
 					<span><i xml:lang="fr">Daignes paraître</i>,”</span>
 				</p>
 			</blockquote>
-			<p>but very low, so as not to awaken Mamouche, whom he left sleeping upon a bed that Marshall at his order had prepared for the boy beside the sitting-room fire.</p>
+			<p class="continued">but very low, so as not to awaken Mamouche, whom he left sleeping upon a bed that Marshall at his order had prepared for the boy beside the sitting-room fire.</p>
 			<p>At a very early hour next morning Marshall appeared at his master’s bedside with the accustomed morning coffee.</p>
 			<p>“What is he doing?” asked Doctor John-Luis, as he sugared and stirred the tiny cup of black coffee.</p>
 			<p>“Who dat, sah?”</p>