diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index f3c7981e08..d36eb3885e 100644
Binary files a/docs/assets/bootstrap.zip and b/docs/assets/bootstrap.zip differ
diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index d87bd2f8ef..102fdfaa3c 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -1941,7 +1941,6 @@ table .span24 {
 }
 .collapse.in {
   height: auto;
-  overflow: visible;
 }
 .close {
   float: right;
diff --git a/less/component-animations.less b/less/component-animations.less
index edfaef301f..4a6368cf95 100644
--- a/less/component-animations.less
+++ b/less/component-animations.less
@@ -16,6 +16,5 @@
   height: 0;
   &.in {
     height: auto;
-    overflow: visible;
   }
-}
+}
\ No newline at end of file
diff --git a/less/test.js b/less/test.js
new file mode 100644
index 0000000000..c815d2cc3f
--- /dev/null
+++ b/less/test.js
@@ -0,0 +1,11 @@
+var util = require('util'),
+    exec = require('child_process').exec,
+    child;
+
+var total = 0;
+var start = new(Date);
+child = exec('lessc bootstrap.scss', function (error, stdout, stderr) {
+	var end = new(Date);
+	total = end - start;
+	console.log(total)
+});
\ No newline at end of file