Improve line-height.

services/web/public/stylesheets/app/error-pages.less

@@ -23,8 +23,7 @@
 			color: @red;
 			margin-bottom: @line-height-computed;
 		}
-		.error-status,
-		.error-description {
+		.error-status {
 			font-family: @font-family-serif;
 			margin-bottom: (@line-height-computed / 4);
 			line-height: 1;
@@ -32,6 +31,7 @@
 			font-size: @font-size-h1;
 		}
 		.error-description {
+			font-family: @font-family-serif;
 			font-size: @font-size-h3;
 			color: @gray-light;
 			margin-bottom: @line-height-computed * 2;