diff --git a/min/lib/Minify/CSS.php b/min/lib/Minify/CSS.php
index 7cd14ce..cbf088e 100644
--- a/min/lib/Minify/CSS.php
+++ b/min/lib/Minify/CSS.php
@@ -244,6 +244,14 @@ class Minify_CSS {
         if ($m === 'keep') {
             return '/*keep*/';
         }
+        if ($m === '" "') {
+            // component of http://tantek.com/CSS/Examples/midpass.html
+            return '/*" "*/';
+        }
+        if (preg_match('@";\\}\\s*\\}/\\*\\s+@', $m)) {
+            // component of http://tantek.com/CSS/Examples/midpass.html
+            return '/*";}}/* */';
+        }
         if (self::$_inHack) {
             // inversion: feeding only to one browser
             if (preg_match('@
diff --git a/web/test/_test_files/css/hacks.css b/web/test/_test_files/css/hacks.css
index 0aafa3b..9108750 100644
--- a/web/test/_test_files/css/hacks.css
+++ b/web/test/_test_files/css/hacks.css
@@ -55,3 +55,8 @@ foo { /* filters for IE */
     _height : 20px;
     *height : 15px;
 }
+
+/* http://tantek.com/CSS/Examples/midpass.html */
+@media tty {
+ i{content:"\";/*" "*/}} @import 'midpassafter.css'; /*";}
+}/* */
diff --git a/web/test/_test_files/css/hacks.min.css b/web/test/_test_files/css/hacks.min.css
index 9513afa..df11033 100644
--- a/web/test/_test_files/css/hacks.min.css
+++ b/web/test/_test_files/css/hacks.min.css
@@ -1,3 +1,4 @@
 /*\*/a{}.foo{color:red}/**//*\*//*/@import "ie5mac.css";/**//*/*/.foo{display:block}/**//*/*//*/.foo{display:crazy}/**/div{width:140px;width/**/:/**/100px;width:/**/100px}html>/**/body{}div{width:400px;voice-family:"\"}\"";voice-family:inherit;width:300px}div{filter:chroma(color=#aabbcc);filter:mask(color=#000000) shadow(color=#9BAD71, direction=135) chroma(color=#000000)}@media
 screen{/*\*/* html
-div#page{height:1%}/**/}foo{_height:20px;*height:15px}
\ No newline at end of file
+div#page{height:1%}/**/}foo{_height:20px;*height:15px}@media
+tty{i{content:"\";/*" "*/}}@import 'midpassafter.css';/*"}}/* */
\ No newline at end of file