diff --git a/css.html b/css.html
index e6d17d185c..70ee8c2f09 100644
--- a/css.html
+++ b/css.html
@@ -92,11 +92,11 @@ base_url: "../"
             <th></th>
             <th>
               Tiny devices
-              <small>Phones (&lt;480px)</small>
+              <small>Phones (&lt;768px)</small>
             </th>
             <th>
               Small devices
-              <small>Tablets (&lt;768px)</small>
+              <small>Tablets (&gt;768px)</small>
             </th>
             <th>
               Medium devices