Photos: Fix invisible audio block.

photos/blocks.css

@@ -313,10 +313,15 @@ p.has-drop-cap:not(:focus):first-letter {
 
 .wp-block-video video,
 .wp-block-audio audio {
-	height: auto;
 	width: 100%;
 }
 
+/* Video */
+
+.wp-block-video video {
+	height: auto;
+}
+
 /* Tables */
 .wp-block-table {
 	display: table;