diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index 7e6f0e7a30..c6153a061a 100644
Binary files a/docs/assets/bootstrap.zip and b/docs/assets/bootstrap.zip differ
diff --git a/less/mixins.less b/less/mixins.less
index 39e1d87967..804f834e56 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -237,7 +237,6 @@
 
 
 
-
 // Input grid system
 // -------------------------
 #inputGridSystem {
@@ -314,6 +313,20 @@
        -o-transform: translate(@x, @y);
           transform: translate(@x, @y);
 }
+.skew(@x: 0, @y: 0) {
+  -webkit-transform: translate(@x, @y);
+     -moz-transform: translate(@x, @y);
+      -ms-transform: translate(@x, @y);
+       -o-transform: translate(@x, @y);
+          transform: translate(@x, @y);
+}
+.skew(@x: 0, @y: 0) {
+  -webkit-transform: skew(@x, @y);
+     -moz-transform: skew(@x, @y);
+      -ms-transform: skew(@x, @y);
+       -o-transform: skew(@x, @y);
+          transform: skew(@x, @y);
+}
 
 // Background clipping
 // Heads up: FF 3.6 and under need "padding" instead of "padding-box"