[csswg] Add some styling to handle MD-genned lists.

--HG--
extra : rebase_source : 2bdbb3f829e532ab9bd30683c9328013b54b661f

Author: tabatkins

default.css

@@ -125,6 +125,14 @@
 	 line-height: 0.5em;
 	}
 
+	/* Style for paragraphs I know are in MD-genned lists */
+	[data-md] > :first-child {
+		margin-top: 0;
+	}
+	[data-md] > :last-child {
+		margin-bottom: 0;
+	}
+
 /** Inline Lists **************************************************************/
 	/* This is mostly to make the list inside the CR exit criteria more compact. */