Don't really need to make this <big>, <strong> will do.

diff --git a/languages/messages/MessagesEn.php b/languages/messages/MessagesEn.php
index 9141469..376ff5f 100644 (file)
--- a/languages/messages/MessagesEn.php
+++ b/languages/messages/MessagesEn.php
@@ -945,7 +945,7 @@ See [[Special:Version|version page]].',
 You might have mistyped the URL, or followed an incorrect link.
 This might also indicate a bug in the software used by {{SITENAME}}.',
 'nosuchspecialpage' => 'No such special page',
-'nospecialpagetext' => "<big>'''You have requested an invalid special page.'''</big>
+'nospecialpagetext' => "<strong>You have requested an invalid special page.</strong>
 
 A list of valid special pages can be found at [[Special:SpecialPages|{{int:specialpages}}]].",