Fix HTML and CSS order and format CSS.

site/content/tutorial/17-module-context/01-sharing-code/app-a/AudioPlayer.svelte

@@ -12,13 +12,6 @@
 	}
 </script>
 
-<style>
-	article { margin: 0 0 1em 0; max-width: 800px }
-	h2, p { margin: 0 0 0.3em 0; }
-	audio { width: 100%; margin: 0.5em 0 1em 0; }
-	.playing { color: #ff3e00; }
-</style>
-
 <article class:playing={!paused}>
 	<h2>{title}</h2>
 	<p><strong>{composer}</strong> / performed by {performer}</p>
@@ -30,4 +23,19 @@
 		controls
 		{src}
 	></audio>
-</article>
+</article>
+
+<style>
+	article {
+		margin: 0 0 1em 0; max-width: 800px;
+	}
+	h2, p {
+		margin: 0 0 0.3em 0;
+	}
+	audio {
+		width: 100%; margin: 0.5em 0 1em 0;
+	}
+	.playing {
+		color: #ff3e00;
+	}
+</style>