diff --git a/bootstrap-1.2.0.css b/bootstrap-1.2.0.css
index b2bcc20b33..b502d7fa76 100644
--- a/bootstrap-1.2.0.css
+++ b/bootstrap-1.2.0.css
@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Fri Sep  2 22:08:17 PDT 2011
+ * Date: Fri Sep  2 22:09:02 PDT 2011
  */
 /* Reset.less
  * Props to Eric Meyer (meyerweb.com) for his CSS reset file. We're using an adapted version here	that cuts out some of the reset HTML elements we will never need here (i.e., dfn, samp, etc).
@@ -188,7 +188,7 @@ textarea {
 .fixed-container {
   width: 940px;
   margin-left: auto;
-  margin-left: auto;
+  margin-right: auto;
   zoom: 1;
   margin-bottom: 18px;
 }
@@ -396,7 +396,7 @@ body {
 .container {
   width: 940px;
   margin-left: auto;
-  margin-left: auto;
+  margin-right: auto;
   zoom: 1;
   margin-bottom: 18px;
 }
diff --git a/bootstrap-1.2.0.min.css b/bootstrap-1.2.0.min.css
index a294e905e7..d823c6bef3 100644
--- a/bootstrap-1.2.0.min.css
+++ b/bootstrap-1.2.0.min.css
@@ -22,7 +22,7 @@ textarea{overflow:auto;vertical-align:top;}
 .clearfix{zoom:1;}.clearfix:before,.clearfix:after{display:table;content:"";}
 .clearfix:after{clear:both;}
 .center-block{display:block;margin-left:auto;margin-right:auto;}
-.fixed-container{width:940px;margin-left:auto;margin-left:auto;zoom:1;margin-bottom:18px;}.fixed-container:before,.fixed-container:after{display:table;content:"";}
+.fixed-container{width:940px;margin-left:auto;margin-right:auto;zoom:1;margin-bottom:18px;}.fixed-container:before,.fixed-container:after{display:table;content:"";}
 .fixed-container:after{clear:both;}
 .btn.danger,.alert-message.danger,.btn.danger:hover,.alert-message.danger:hover,.btn.error,.alert-message.error,.btn.error:hover,.alert-message.error:hover,.btn.success,.alert-message.success,.btn.success:hover,.alert-message.success:hover,.btn.info,.alert-message.info,.btn.info:hover,.alert-message.info:hover{color:#ffffff;}
 .btn.danger,.alert-message.danger,.btn.error,.alert-message.error{background-color:#c43c35;background-repeat:repeat-x;background-image:-khtml-gradient(linear, left top, left bottom, from(#ee5f5b), to(#c43c35));background-image:-moz-linear-gradient(top, #ee5f5b, #c43c35);background-image:-ms-linear-gradient(top, #ee5f5b, #c43c35);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #ee5f5b), color-stop(100%, #c43c35));background-image:-webkit-linear-gradient(top, #ee5f5b, #c43c35);background-image:-o-linear-gradient(top, #ee5f5b, #c43c35);background-image:linear-gradient(top, #ee5f5b, #c43c35);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ee5f5b', endColorstr='#c43c35', GradientType=0);text-shadow:0 -1px 0 rgba(0, 0, 0, 0.25);border-color:#c43c35 #c43c35 #882a25;border-color:rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);}
@@ -65,7 +65,7 @@ textarea{overflow:auto;vertical-align:top;}
 .row .offset-two-thirds{margin-left:660px;}
 html,body{background-color:#fff;}
 body{margin:0;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;font-weight:normal;line-height:18px;color:#808080;}
-.container{width:940px;margin-left:auto;margin-left:auto;zoom:1;margin-bottom:18px;}.container:before,.container:after{display:table;content:"";}
+.container{width:940px;margin-left:auto;margin-right:auto;zoom:1;margin-bottom:18px;}.container:before,.container:after{display:table;content:"";}
 .container:after{clear:both;}
 .container-fluid{padding-left:20px;padding-right:20px;zoom:1;margin-bottom:18px;}.container-fluid:before,.container-fluid:after{display:table;content:"";}
 .container-fluid:after{clear:both;}
diff --git a/lib/preboot.less b/lib/preboot.less
index adbbc676ea..3cf9241928 100644
--- a/lib/preboot.less
+++ b/lib/preboot.less
@@ -124,7 +124,7 @@
 .fixed-container {
   width: @siteWidth;
   margin-left: auto;
-  margin-left: auto;
+  margin-right: auto;
   .clearfix();
 }
 .columns(@columnSpan: 1) {