Merge pull request #8846 from ggam/patch-5

Fix grid sizes documentation

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