Add support for @Custom-Media

Fix #34

Author: Nicolas Gallagher

lib/compress.js

@@ -166,6 +166,14 @@ Compiler.prototype.host = function(node){
     + this.emit('}');
 };
 
+/**
+ * Visit custom-media node.
+ */
+
+Compiler.prototype['custom-media'] = function(node){
+  return this.emit('@custom-media ' + node.name + ' ' + node.media + ';', node.position);
+};
+
 /**
  * Visit rule node.
  */

lib/identity.js

@@ -202,6 +202,14 @@ Compiler.prototype.host = function(node){
         + '\n}');
 };
 
+/**
+ * Visit custom-media node.
+ */
+
+Compiler.prototype['custom-media'] = function(node){
+  return this.emit('@custom-media ' + node.name + ' ' + node.media + ';', node.position);
+};
+
 /**
  * Visit rule node.
  */

test/cases/custom-media.css

@@ -0,0 +1 @@
+@custom-media --wide-window screen and (min-width: 40em);