diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index df4dc7ff28..db1e03bdef 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 3cf1a37040..cea318c28b 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -509,8 +509,8 @@
     background-image: -webkit-radial-gradient(circle, @innerColor, @outerColor);
     background-image: -moz-radial-gradient(circle, @innerColor, @outerColor);
     background-image: -ms-radial-gradient(circle, @innerColor, @outerColor);
+    background-image: -o-radial-gradient(circle, @innerColor, @outerColor);
     background-repeat: no-repeat;
-    // Opera cannot do radial gradients yet
   }
   .striped(@color, @angle: -45deg) {
     background-color: @color;