diff --git a/main/css/chamilo/default.css b/main/css/chamilo/default.css
index 37d3275705..b06af7228e 100755
--- a/main/css/chamilo/default.css
+++ b/main/css/chamilo/default.css
@@ -947,8 +947,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/chamilo_electric_blue/default.css b/main/css/chamilo_electric_blue/default.css
index 4e2497597c..adffeeceb8 100755
--- a/main/css/chamilo_electric_blue/default.css
+++ b/main/css/chamilo_electric_blue/default.css
@@ -936,8 +936,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/chamilo_green/default.css b/main/css/chamilo_green/default.css
index 3eadedfcba..e49c0873bb 100755
--- a/main/css/chamilo_green/default.css
+++ b/main/css/chamilo_green/default.css
@@ -940,8 +940,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/chamilo_orange/default.css b/main/css/chamilo_orange/default.css
index 4f89d4f3f1..c9e2c97ba1 100755
--- a/main/css/chamilo_orange/default.css
+++ b/main/css/chamilo_orange/default.css
@@ -934,8 +934,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/chamilo_red/default.css b/main/css/chamilo_red/default.css
index 4ea6f7eb79..8a33be8e33 100755
--- a/main/css/chamilo_red/default.css
+++ b/main/css/chamilo_red/default.css
@@ -941,8 +941,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/medical/images/default.css b/main/css/medical/images/default.css
index a3176ea7ef..9a0eaf7ba4 100755
--- a/main/css/medical/images/default.css
+++ b/main/css/medical/images/default.css
@@ -535,8 +535,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav { margin-right: 0px;}
diff --git a/main/css/public_admin/default.css b/main/css/public_admin/default.css
index d76adcf421..8a4eb9ca38 100644
--- a/main/css/public_admin/default.css
+++ b/main/css/public_admin/default.css
@@ -785,8 +785,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/silver_line/default.css b/main/css/silver_line/default.css
index dbebb1c295..54c66135b8 100644
--- a/main/css/silver_line/default.css
+++ b/main/css/silver_line/default.css
@@ -714,8 +714,8 @@ float:right;
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: -7px 0 0 -5%;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/css/sober_brown/default.css b/main/css/sober_brown/default.css
index 4dc79d9e02..1b8d702bce 100644
--- a/main/css/sober_brown/default.css
+++ b/main/css/sober_brown/default.css
@@ -758,8 +758,8 @@ this lets the navigation menu appear to the left:
  margin-left: -5%;
 }
 #toolnav { float: right; width: 180px; padding: 0; margin: 0;
- margin-left: -5%; /* the difference to make the left colum appear flush left */
-}
+ margin-left: -5%; /* the difference to make the left colum appear flush left
+}*/
 /* Hide from IE5-mac. Only IE-win sees this. \*/
 * html #toolnav {
     margin-right: 0px;
diff --git a/main/inc/lib/fckeditor/fcktemplates.xml.php b/main/inc/lib/fckeditor/fcktemplates.xml.php
index 7565df445c..4ef00d7864 100755
--- a/main/inc/lib/fckeditor/fcktemplates.xml.php
+++ b/main/inc/lib/fckeditor/fcktemplates.xml.php
@@ -86,7 +86,18 @@ function loadCSS($css_name) {
     // Reseting the body's background color to be in white, see Task #1885 and http://www.chamilo.org/en/node/713
     $template_css .= "\n".'body { background: #fff; } /* Resetting the background. */'."\n";
 
-    return ' <style type="text/css">'.$template_css.'</style>';
+    // Removing system-specific styles and cleaning, see task #1282.
+    $regex = array(
+        '/\/\*(.+?)\*\//sm' => '',			// Removing comments.
+        '/\r\n/sm' => "\n",					// New lines in Unix style.
+        '/\r/sm' => "\n",					// New lines in Unix style.
+        '/\s*\n/sm' => "\n",					// Stripping whitespace from empty lines.
+        '/\n{2}/sm' => "\n\n"					// Removing duplicate empty lines.
+
+    );
+    $template_css = preg_replace(array_keys($regex), $regex, $template_css);
+//var_dump($template_css);
+    return "\n".'<style type="text/css">'.$template_css.'</style>'."\n";
 }
 
 /**