diff --git a/README.md b/README.md
index b171370..85d2767 100644
--- a/README.md
+++ b/README.md
@@ -1312,6 +1312,7 @@ Resources: **[CSS-Tricks](http://css-tricks.com/snippets/css/a-guide-to-flexbox/
      display: -ms-flexbox;
      display: -webkit-flex;
      display: -moz-box;
+     display: flex;
     }