1 files changed, 1 insertions, 3 deletions
diff --git a/docs/getting-started/introduction.md b/docs/getting-started/introduction.md
index d70a42627..0ca845a8a 100644
--- a/docs/getting-started/introduction.md
+++ b/docs/getting-started/introduction.md
@@ -96,9 +96,7 @@ On the rare occasion you need to override it, use something like the following:
 
 {% highlight scss %}
 .selector-for-some-widget {
-  -webkit-box-sizing: content-box;
-     -moz-box-sizing: content-box;
-          box-sizing: content-box;
+  box-sizing: content-box;
 }
 {% endhighlight %}