diff --git a/Classes/css/core/Context.java b/Classes/css/core/Context.java
new file mode 100644
index 0000000..3c7ee4e
--- /dev/null
+++ b/Classes/css/core/Context.java
@@ -0,0 +1,20 @@
+package Classes.css.core;
+
+import java.util.HashMap;
+
+public class Context{
+	
+	/* Context data (associative array) */
+	private static HashMap<String, Object> attr = new HashMap<String, Object>();
+	
+	/* Add data */
+	public static void bind(String index, Object data){
+		Context.attr.put(index,  data);
+	}
+	
+	/* Fetch data */
+	public static Object get(String index){
+		return Context.attr.get(index);
+	}
+	
+}
diff --git a/Classes/css/core/Ruleset.java b/Classes/css/core/Ruleset.java
index 065abb8..5d5a219 100644
--- a/Classes/css/core/Ruleset.java
+++ b/Classes/css/core/Ruleset.java
@@ -65,7 +65,7 @@ public class Ruleset {
 		
 		/* (x) If nothing custom -> suppose java fx rule */
 		else
-			new_rule = (Rule) new JavaFX(l_side, (String) r_side[0]);
+			new_rule = (Rule) new JavaFX(l_side, r_side[0].toString());