change the header nav description to include the new float

diff --git a/docs/components/card.md b/docs/components/card.md
index be9846a308b5d2fce44b7a21bc9b9982a65dc1ff..1bb0866fe873cfaacf5104b034d17bf04d0cf738 100644 (file)
--- a/docs/components/card.md
+++ b/docs/components/card.md
@@ -226,7 +226,7 @@ Card headers can be styled by adding `.card-header` to `<h*>` elements.
 
 ## Header nav
 
-Use Bootstrap's nav pills or tabs within a card header. Be sure to always include a `.pull-*-*` utility class for proper alignment.
+Use Bootstrap's nav pills or tabs within a card header. Be sure to always include a `.float-*-*` utility class for proper alignment.
 
 {% example html %}
 <div class="card text-xs-center">