documentation: combining object reference and class attribute

Schwad · Nov 5, 2013 · ee00d3b · ee00d3b
1 parent da1b6c4
commit ee00d3b
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/REFERENCE.md b/REFERENCE.md
@@ -622,6 +622,13 @@ is compiled to:
       Hello!
     </div>
 
+The `:class` attribute may be used in conjunction with an object
+reference.  The compiled element will have the union of all classes.
+
+    - user = User.find(1)
+    %p[user]{:class => 'alpha bravo'}
+    <p id="user_1" class="alpha bravo user"></p>
+
 ## Doctype: `!!!`
 
 When describing HTML documents with Haml, you can have a document type or XML