From 8fce6f04ef8a4bea2dd115dfa6a2d81f3a026322 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 4 Jan 2016 08:46:05 +0530
Subject: [PATCH] Fix #474 (Fixing an exception if the CSS contains "@media
 all;")

---
 src/calibre/ebooks/mobi/reader/markup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/ebooks/mobi/reader/markup.py b/src/calibre/ebooks/mobi/reader/markup.py
index 71b7fe549b..bf9c0e559f 100644
--- a/src/calibre/ebooks/mobi/reader/markup.py
+++ b/src/calibre/ebooks/mobi/reader/markup.py
@@ -334,7 +334,7 @@ def handle_media_queries(raw):
             return '@media screen {'
         return m.group()
 
-    return re.sub(r'@media\s[^{]*{', replace, raw)
+    return re.sub(r'@media\s[^{;]*?[{;]', replace, raw)
 
 def expand_mobi8_markup(mobi8_reader, resource_map, log):
     # First update all internal links that are based on offsets