From 1bb7c0e669bfa431b190ed3b283be93f27cf0eae Mon Sep 17 00:00:00 2001
From: Mark Otto <markotto@twitter.com>
Date: Wed, 1 Aug 2012 19:33:37 -0700
Subject: [PATCH] fixes #4254: make .span12 expand full width of a parent when
 responsive

---
 docs/assets/css/bootstrap-responsive.css | 7 +++++++
 less/responsive-767px-max.less           | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/docs/assets/css/bootstrap-responsive.css b/docs/assets/css/bootstrap-responsive.css
index d234664421..d5b7e3c4e0 100644
--- a/docs/assets/css/bootstrap-responsive.css
+++ b/docs/assets/css/bootstrap-responsive.css
@@ -814,6 +814,13 @@
     width: auto;
     margin-left: 0;
   }
+  .span12,
+  .row-fluid .span12 {
+    width: 100%;
+    -webkit-box-sizing: border-box;
+       -moz-box-sizing: border-box;
+            box-sizing: border-box;
+  }
   .input-large,
   .input-xlarge,
   .input-xxlarge,
diff --git a/less/responsive-767px-max.less b/less/responsive-767px-max.less
index 18c96ee0b7..65e019a8fb 100644
--- a/less/responsive-767px-max.less
+++ b/less/responsive-767px-max.less
@@ -62,6 +62,11 @@
     width: auto;
     margin-left: 0;
   }
+  .span12,
+  .row-fluid .span12 {
+    width: 100%;
+    .box-sizing(border-box);
+  }
 
   // FORM FIELDS
   // -----------