diff --git a/apps/tests/ui/style/style-tests.ts b/apps/tests/ui/style/style-tests.ts
index 3446ec5d0..f32865dc9 100644
--- a/apps/tests/ui/style/style-tests.ts
+++ b/apps/tests/ui/style/style-tests.ts
@@ -3,6 +3,7 @@ import buttonModule = require("ui/button");
 import labelModule = require("ui/label");
 import pageModule = require("ui/page");
 import stackModule = require("ui/layouts/stack-layout");
+import wrapModule = require("ui/layouts/wrap-layout");
 import tabViewModule = require("ui/tab-view");
 import helper = require("../../ui/helper");
 import styling = require("ui/styling");
@@ -384,87 +385,66 @@ export function test_restore_original_values_when_state_is_changed() {
     helper.goBack();
 }
 
-// TODO: Complex composite selectors are not supported yet
-//export var test_composite_selector_type_and_class = function () {
-//    // Arrange
-//    var testPage = new page.Page();
-//    var testStack = new stack.StackLayout();
-//    testPage.content = testStack;
+export var test_composite_selector_type_and_class = function () {
+   // Arrange
+   var testStack = new stackModule.StackLayout();
 
-//    var btnWithClass = new button.Button();
-//    btnWithClass.className = "test";
-//    testStack.addChild(btnWithClass);
+   var btnWithClass = new buttonModule.Button();
+   btnWithClass.className = "test";
+   testStack.addChild(btnWithClass);
 
-//    var btnWithNoClass = new button.Button();
-//    testStack.addChild(btnWithNoClass);
+   var btnWithNoClass = new buttonModule.Button();
+   testStack.addChild(btnWithNoClass);
 
-//    var lblWithClass = new label.Label();
-//    lblWithClass.className = "test";
-//    testStack.addChild(lblWithClass);
+   var lblWithClass = new labelModule.Label();
+   lblWithClass.className = "test";
+   testStack.addChild(lblWithClass);
 
-//    testPage.css = "button.test { color: red; }";
+   let testCss = "button.test { color: red; }";
+   
+   let testFunc = function(views: Array<viewModule.View>) {
+       TKUnit.assert(btnWithClass.style.color, "Color property no applied correctly.");
+       TKUnit.assert(btnWithClass.style.color.hex === "#FF0000", "Color property no applied correctly.");
 
-//    // Act & Assert
-//    var finished = false;
-//    testPage.onNavigatedTo = function (context) {
-//        TKUnit.assert(btnWithClass.style.color, "Color property no applied correctly.");
-//        TKUnit.assert(btnWithClass.style.color.hex === "#FF0000", "Color property no applied correctly.");
+       TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value");
 
-//        TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value");
+       TKUnit.assert(lblWithClass.style.color === undefined, "Color should not have a value");
+   }
+   
+   helper.buildUIAndRunTest(testStack, testFunc, testCss);
+}
 
-//        TKUnit.assert(lblWithClass.style.color === undefined, "Color should not have a value");
+export var test_composite_selector_type_class_state = function () {
+   // Arrange
+   var testStack = new stackModule.StackLayout();
+   
+   var btnWithClass = new buttonModule.Button();
+   btnWithClass.className = "test";
+   testStack.addChild(btnWithClass);
 
-//        finished = true;
-//    };
-//    frame.topmost().navigate(testPage);
+   var btnWithNoClass = new buttonModule.Button();
+   testStack.addChild(btnWithNoClass);
 
-//    TKUnit.waitUntilReady(function () {
-//        return finished;
-//    }, 3);
-//}
+   var lblWithClass = new labelModule.Label();
+   lblWithClass.className = "test";
+   testStack.addChild(lblWithClass);
 
-// TODO: Complex composite selectors are not supported yet
-//export var test_composite_selector_type_class_state = function () {
-//    // Arrange
-//    var testPage = new page.Page();
-//    var testStack = new stack.StackLayout();
-//    testPage.content = testStack;
+   let testCss = "button.test:pressed { color: red; }";
+   
+   let testFunc = function(views: Array<viewModule.View>) {
+       testButtonPressedStateIsRed(btnWithClass);
 
-//    var btnWithClass = new button.Button();
-//    btnWithClass.className = "test";
-//    testStack.addChild(btnWithClass);
+       // The button with no class should not react to state changes.
+       TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
+       btnWithNoClass._goToVisualState("pressed");
+       TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
+       btnWithNoClass._goToVisualState("normal");
+       TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
 
-//    var btnWithNoClass = new button.Button();
-//    testStack.addChild(btnWithNoClass);
-
-//    var lblWithClass = new label.Label();
-//    lblWithClass.className = "test";
-//    testStack.addChild(lblWithClass);
-
-//    testPage.css = "button.test:pressed { color: red; }";
-
-//    // Act & Assert
-//    var finished = false;
-//    testPage.onNavigatedTo = function (context) {
-//        testButtonPressedStateIsRed(btnWithClass);
-
-//        // The button with no class should not react to state changes.
-//        TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
-//        btnWithNoClass._goToVisualState("pressed");
-//        TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
-//        btnWithNoClass._goToVisualState("normal");
-//        TKUnit.assert(btnWithNoClass.style.color === undefined, "Color should not have a value.");
-
-//        TKUnit.assert(lblWithClass.style.color === undefined, "Color should not have a value");
-
-//        finished = true;
-//    };
-//    frame.topmost().navigate(testPage);
-
-//    TKUnit.waitUntilReady(function () {
-//        return finished;
-//    }, 3);
-//}
+       TKUnit.assert(lblWithClass.style.color === undefined, "Color should not have a value");
+   }
+   helper.buildUIAndRunTest(testStack, testFunc, testCss);
+}
 
 export var test_style_is_applied_when_control_is_added_after_load = function () {
     var page: pageModule.Page;
@@ -843,6 +823,637 @@ export function test_set_mixed_CSS_cases_works() {
     }, casedCSS);
 }
 
+export function test_basic_hierarchical_selectors() {
+    let stack = new stackModule.StackLayout();
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "stacklayout button { background-color: #FF0000; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#FF0000");
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#FF0000");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_basic_hierarchical_direct_child_selectors() {
+    let stack = new stackModule.StackLayout();
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "stacklayout > button { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#FF0000");
+        // only buttons that are direct children of StackLayout should have red background color
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#00FF00");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_basic_hierarchical_direct_child_more_levels_selectors() {
+    let stack = new stackModule.StackLayout();
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "stacklayout > wraplayout > button { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#00FF00");
+        // only buttons that are direct children of StackLayout and WrapLayout should have red background color
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#FF0000");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_hierarchical_direct_child_more_levels_diff_selector_types() {
+    let stack = new stackModule.StackLayout();
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    wrap.className = "wraplayoutClass";
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    testButton2.className = "buttonClass";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "stacklayout>.wraplayoutClass > .buttonClass { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#00FF00");
+        // only buttons that are direct children of StackLayout and WrapLayout should have red background color
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#FF0000");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_hierarchical_direct_child_more_levels_diff_selector_types2() {
+    let stack = new stackModule.StackLayout();
+    stack.id = "stack";
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    wrap.className = "wraplayoutClass";
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    testButton2.className = "buttonClass";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "#stack>.wraplayoutClass>.buttonClass { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#00FF00");
+        // only buttons that are direct children of Layout with id stack and Layout with cssClass wraplayoutClass should have red background color
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#FF0000");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_hierarchical_direct_child_more_levels_diff_selector_types_invalid() {
+    let stack = new stackModule.StackLayout();
+    stack.id = "stack";
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    wrap.className = "wraplayoutClass";
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    testButton2.className = "buttonClass";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "#stackErr > .wraplayoutClass > .buttonClass { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#00FF00");
+        // this is an invalid css so red style should not be applied
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#00FF00");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_hierarchical_direct_child_more_levels_diff_selector_types_invalid_middle() {
+    let stack = new stackModule.StackLayout();
+    stack.id = "stack";
+    let testButton1 = new buttonModule.Button();
+    testButton1.text = "Test 1";
+    testButton1.id = "testButton1";
+    
+    let wrap = new wrapModule.WrapLayout();
+    wrap.className = "wraplayoutClass";
+    let testButton2 = new buttonModule.Button();
+    testButton2.text = "Test 2";
+    testButton2.id = "testButton2";
+    testButton2.className = "buttonClass";
+    
+    wrap.addChild(testButton2);
+    stack.addChild(testButton1);
+    stack.addChild(wrap);
+    
+    let testCss = "#stack > .wraplayoutClassErr > .buttonClass { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(stack.getViewById("testButton1"), "#00FF00");
+        // this is an invalid css so red style should not be applied
+        helper.assertViewBackgroundColor(stack.getViewById("testButton2"), "#00FF00");
+    }
+    
+    helper.buildUIAndRunTest(stack, testFunc, testCss);
+}
+
+export function test_type_attr_selector() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "some value";
+    
+    let testCss = "button[testAttr] { background-color: #FF0000; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_class_attr_selector() {
+    let testButton = new buttonModule.Button();
+    testButton.className = "button";
+    testButton["testAttr"] = "some value";
+    
+    let testCss = ".button[testAttr] { background-color: #FF0000; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_id_attr_selector() {
+    let testButton = new buttonModule.Button();
+    testButton.id = "myButton";
+    testButton["testAttr"] = "some value";
+    
+    let testCss = "#myButton[testAttr] { background-color: #FF0000; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_type_attr_value_selector() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "somevalue";
+    
+    let testCss = "button[testAttr='somevalue'] { background-color: #FF0000; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_type_attr_invalid_value_selector() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "somevalue";
+    
+    let testCss = "button[testAttr='value'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_correct_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_correct_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "some flower";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_correct_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower new";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_incorrect_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "my-flower";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_incorrect_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowers";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_tilde_attr_selector_incorrect_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower-house";
+    
+    let testCss = "button[testAttr~='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_pipe_attr_selector_correct_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_pipe_attr_selector_correct_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower-house";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_pipe_attr_selector_incorrect_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowers";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_pipe_attr_selector_incorrect_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "myflower";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_pipe_attr_selector_incorrect_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "my-flower";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_power_attr_selector_correct_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower";
+    
+    let testCss = "button[testAttr^='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_power_attr_selector_correct_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower-house";
+    
+    let testCss = "button[testAttr^='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_power_attr_selector_correct_synta2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowers";
+    
+    let testCss = "button[testAttr^='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_power_attr_selector_incorrect_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "myflower";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_power_attr_selector_incorrect_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "my-flower";
+    
+    let testCss = "button[testAttr|='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_correct_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_correct_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "myflower";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_correct_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "my-flower";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_incorrect_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowers";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_incorrect_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowermy";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_dollar_attr_selector_incorrect_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower-my";
+    
+    let testCss = "button[testAttr$='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax1() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "myflower";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax2() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "my-flower";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax3() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowers";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax4() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flowermy";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_correct_syntax5() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flower-my";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } ";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#FF0000");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
+
+export function test_star_attr_selector_incorrect_syntax() {
+    let testButton = new buttonModule.Button();
+    testButton["testAttr"] = "flow";
+    
+    let testCss = "button[testAttr*='flower'] { background-color: #FF0000; } button { background-color: #00FF00; }";
+    
+    let testFunc = function (views: Array<viewModule.View>) {
+        // style from correct type css should be applied
+        helper.assertViewBackgroundColor(testButton, "#00FF00");
+    }
+    helper.buildUIAndRunTest(testButton, testFunc, testCss);
+}
 // <snippet module="ui/styling" title="styling">
 // For information and example how to use style properties please refer to special [**Styling**](../../../styling.md) topic. 
 // </snippet>
diff --git a/ui/core/bindable.ts b/ui/core/bindable.ts
index 3eb0975f5..eaefe8e7a 100644
--- a/ui/core/bindable.ts
+++ b/ui/core/bindable.ts
@@ -9,6 +9,7 @@ import viewModule = require("ui/core/view");
 import * as applicationModule from "application";
 import * as polymerExpressionsModule from "js-libs/polymer-expressions";
 import * as specialPropertiesModule from "ui/builder/special-properties";
+import * as utils from "utils/utils";
 
 //late import
 var application: typeof applicationModule;
@@ -332,8 +333,7 @@ export class Binding {
         // text="{{ sourceProperty = $parents['ListView'].test, expression = $parents['ListView'].test + 2}}"
         // update expression will be '$newPropertyValue + 2'
         // then on expression execution the new value will be taken and target property will be updated with the value of the expression.
-        var escapeRegex = /[-\/\\^$*+?.()|[\]{}]/g;
-        var escapedSourceProperty = this.options.sourceProperty.replace(escapeRegex, '\\$&');
+        var escapedSourceProperty = utils.escapeRegexSymbols(this.options.sourceProperty);
         var expRegex = new RegExp(escapedSourceProperty, 'g');
         var resultExp = this.options.expression.replace(expRegex, bc.newPropertyValueKey);
         return resultExp;
diff --git a/ui/styling/css-selector.d.ts b/ui/styling/css-selector.d.ts
index 77fe993ce..88747193e 100644
--- a/ui/styling/css-selector.d.ts
+++ b/ui/styling/css-selector.d.ts
@@ -7,6 +7,7 @@
         constructor(expression: string, declarations: cssParser.Declaration[]);
 
         expression: string;
+        attrExpression: string;
 
         declarations(): Array<{ property: string; value: any }>;
 
diff --git a/ui/styling/css-selector.ts b/ui/styling/css-selector.ts
index cb917cca4..be109e776 100644
--- a/ui/styling/css-selector.ts
+++ b/ui/styling/css-selector.ts
@@ -3,23 +3,45 @@ import observable = require("ui/core/dependency-observable");
 import cssParser = require("css");
 import * as trace from "trace";
 import * as styleProperty from "ui/styling/style-property";
+import * as types from "utils/types";
+import * as utils from "utils/utils";
 
-var ID_SPECIFICITY = 10000;
+var ID_SPECIFICITY = 1000000;
+var ATTR_SPECIFITY = 10000;
 var CLASS_SPECIFICITY = 100;
 var TYPE_SPECIFICITY = 1;
 
 export class CssSelector {
     private _expression: string;
     private _declarations: cssParser.Declaration[];
+    private _attrExpression: string;
 
     constructor(expression: string, declarations: cssParser.Declaration[]) {
-        this._expression = expression;
+        if (expression) {
+            let leftSquareBracketIndex = expression.indexOf(LSBRACKET);
+            if (leftSquareBracketIndex > 0) {
+                // extracts what is inside square brackets ([target = 'test'] will extract "target = 'test'")
+                var paramsRegex = /\[\s*(.*)\s*\]/;
+                let attrParams = paramsRegex.exec(expression);
+                if (attrParams && attrParams.length > 1) {
+                    this._attrExpression = attrParams[1].trim();
+                }
+                this._expression = expression.substr(0, leftSquareBracketIndex);
+            }
+            else {
+                this._expression = expression;
+            }
+        }
         this._declarations = declarations;
     }
 
     get expression(): string {
         return this._expression;
     }
+    
+    get attrExpression(): string {
+        return this._attrExpression;
+    }
 
     get declarations(): Array<{ property: string; value: any }> {
         return this._declarations;
@@ -74,13 +96,33 @@ class CssTypeSelector extends CssSelector {
         return TYPE_SPECIFICITY;
     }
     public matches(view: view.View): boolean {
-        return matchesType(this.expression, view);
+        let result = matchesType(this.expression, view);
+        if (result && this.attrExpression) {
+            return matchesAttr(this.attrExpression, view);
+        }
+        return result;
     }
 }
 
 function matchesType(expression: string, view: view.View): boolean {
-    return expression.toLowerCase() === view.typeName.toLowerCase() ||
-        expression.toLowerCase() === view.typeName.split(/(?=[A-Z])/).join("-").toLowerCase();
+    let exprArr = expression.split(".");
+    let exprTypeName = exprArr[0];
+    let exprClassName = exprArr[1];
+       
+    let typeCheck = exprTypeName.toLowerCase() === view.typeName.toLowerCase() || 
+        exprTypeName.toLowerCase() === view.typeName.split(/(?=[A-Z])/).join("-").toLowerCase();
+          
+    if (typeCheck) {
+        if (exprClassName) {
+            return view._cssClasses.some((cssClass, i, arr) => { return cssClass === exprClassName });
+        }
+        else {
+            return typeCheck;
+        }
+    }
+    else {
+        return false;
+    }
 }
 
 class CssIdSelector extends CssSelector {
@@ -88,7 +130,11 @@ class CssIdSelector extends CssSelector {
         return ID_SPECIFICITY;
     }
     public matches(view: view.View): boolean {
-        return this.expression === view.id;
+        let result = this.expression === view.id;
+        if (result && this.attrExpression) {
+            return matchesAttr(this.attrExpression, view);
+        }
+        return result;
     }
 }
 
@@ -98,10 +144,151 @@ class CssClassSelector extends CssSelector {
     }
     public matches(view: view.View): boolean {
         var expectedClass = this.expression;
-        return view._cssClasses.some((cssClass, i, arr) => { return cssClass === expectedClass });
+        let result = view._cssClasses.some((cssClass, i, arr) => { return cssClass === expectedClass });
+        if (result && this.attrExpression) {
+            return matchesAttr(this.attrExpression, view);
+        }
+        return result;
     }
 }
 
+class CssCompositeSelector extends CssSelector {
+    get specificity(): number {
+        let result = 0;
+        for(let i = 0; i < this.parentCssSelectors.length; i++) {
+            result += this.parentCssSelectors[i].selector.specificity;
+        }
+        return result;
+    }
+    
+    private parentCssSelectors: [{ selector: CssSelector, onlyDirectParent: boolean}];
+    
+    private splitExpression(expression) {
+        let result = [];
+        let tempArr = [];
+        let validSpace = true;
+        for (let i = 0; i < expression.length; i++) {
+            if (expression[i] === LSBRACKET) {
+                validSpace = false;
+            }
+            if (expression[i] === RSBRACKET) {
+                validSpace = true;
+            }
+            if ((expression[i] === SPACE && validSpace) || (expression[i] === GTHAN)) {
+                if (tempArr.length > 0) {
+                    result.push(tempArr.join(""));
+                    tempArr = [];
+                }
+                if (expression[i] === GTHAN) {
+                    result.push(GTHAN);
+                }
+                continue;
+            }
+            tempArr.push(expression[i]);
+        }
+        if (tempArr.length > 0) {
+            result.push(tempArr.join(""));
+        }
+        return result;
+    }
+    
+    constructor(expr: string, declarations: cssParser.Declaration[]) {
+        super(expr, declarations);
+        let expressions = this.splitExpression(expr);
+        let onlyParent = false;
+        this.parentCssSelectors = <any>[];
+        for(let i = expressions.length - 1; i >= 0; i--) {
+            if (expressions[i].trim() === GTHAN) {
+                onlyParent = true;
+                continue;
+            }
+            this.parentCssSelectors.push({selector: createSelector(expressions[i].trim(), null), onlyDirectParent: onlyParent});
+            onlyParent = false;
+        }
+    }
+    
+    public matches(view: view.View): boolean {
+        let result = this.parentCssSelectors[0].selector.matches(view);
+        if (!result) {
+            return result;
+        }
+        let tempView = view.parent;
+        for(let i = 1; i < this.parentCssSelectors.length; i++) {
+            let parentCounter = 0;
+            while (tempView && parentCounter === 0) {
+                result = this.parentCssSelectors[i].selector.matches(tempView);
+                if (result) {
+                    tempView = tempView.parent;
+                    break;
+                }
+                if (this.parentCssSelectors[i].onlyDirectParent) {
+                    parentCounter++;
+                }
+                tempView = tempView.parent;
+            }
+            if (!result) {
+                break;
+                return result;
+            }
+        }
+        return result;
+    }
+}
+
+class CssAttrSelector extends CssSelector {
+    get specificity(): number {
+        return ATTR_SPECIFITY;
+    }
+    
+    public matches(view: view.View): boolean {
+        return matchesAttr(this.attrExpression, view);
+    }
+}
+
+function matchesAttr(attrExpression: string, view: view.View): boolean {
+    let equalSignIndex = attrExpression.indexOf(EQUAL);
+    if (equalSignIndex > 0) {
+        let nameValueRegex = /(.*[^~|\^\$\*])[~|\^\$\*]?=(.*)/;
+        let nameValueRegexRes = nameValueRegex.exec(attrExpression);
+        let attrName;
+        let attrValue;
+        if (nameValueRegexRes && nameValueRegexRes.length > 2) {
+            attrName = nameValueRegexRes[1].trim();
+            attrValue = nameValueRegexRes[2].trim().replace(/^(["'])*(.*)\1$/, '$2');
+        }
+        // extract entire sign (=, ~=, |=, ^=, $=, *=)
+        let escapedAttrValue = utils.escapeRegexSymbols(attrValue); 
+        let attrCheckRegex;
+        switch (attrExpression.charAt(equalSignIndex - 1)) {
+            case "~":
+                attrCheckRegex = new RegExp("(^|[^a-zA-Z-])" + escapedAttrValue + "([^a-zA-Z-]|$)");
+                break;
+            case "|":
+                attrCheckRegex = new RegExp("^" + escapedAttrValue + "\\b");
+                break;
+            case "^":
+                attrCheckRegex = new RegExp("^" + escapedAttrValue);
+                break;
+            case "$":
+                attrCheckRegex = new RegExp(escapedAttrValue + "$");
+                break;
+            case "*":
+                attrCheckRegex = new RegExp(escapedAttrValue);
+                break;
+
+            // only = (EQUAL)
+            default:
+                attrCheckRegex = new RegExp("^"+escapedAttrValue+"$");
+                break;
+        }
+        return !types.isNullOrUndefined(view[attrName]) && attrCheckRegex.test(view[attrName]+"");
+    }
+    else {
+        return !types.isNullOrUndefined(view[attrExpression]);
+    }
+    return false;
+}
+
 export class CssVisualStateSelector extends CssSelector {
     private _key: string;
     private _match: string;
@@ -109,9 +296,11 @@ export class CssVisualStateSelector extends CssSelector {
     private _isById: boolean;
     private _isByClass: boolean;
     private _isByType: boolean;
+    private _isByAttr: boolean;
 
     get specificity(): number {
         return (this._isById ? ID_SPECIFICITY : 0) +
+            (this._isByAttr ? ATTR_SPECIFITY : 0) + 
             (this._isByClass ? CLASS_SPECIFICITY : 0) +
             (this._isByType ? TYPE_SPECIFICITY : 0);
     }
@@ -131,12 +320,15 @@ export class CssVisualStateSelector extends CssSelector {
         this._key = args[0];
         this._state = args[1];
 
-        if (this._key.charAt(0) === AMP) {
+        if (this._key.charAt(0) === HASH) {
             this._match = this._key.substring(1);
             this._isById = true;
         } else if (this._key.charAt(0) === DOT) {
             this._match = this._key.substring(1);
             this._isByClass = true;
+        } else if (this._key.charAt(0) === LSBRACKET) {
+            this._match = this._key;
+            this._isByAttr = true;
         }
         else if (this._key.length > 0) { // handle the case when there is no key. E.x. ":pressed" selector
             this._match = this._key;
@@ -158,31 +350,51 @@ export class CssVisualStateSelector extends CssSelector {
         if (this._isByType) {
             matches = matchesType(this._match, view);
         }
+        
+        if (this._isByAttr) {
+            matches = matchesAttr(this._key, view);
+        }
 
         return matches;
     }
 }
 
-var AMP = "#",
-    DOT = ".",
-    COLON = ":";
+var HASH = "#";
+var DOT = ".";
+var COLON = ":";
+var SPACE = " ";
+var GTHAN = ">";
+var LSBRACKET = "[";
+var RSBRACKET = "]";
+var EQUAL = "=";
 
 export function createSelector(expression: string, declarations: cssParser.Declaration[]): CssSelector {
-    var colonIndex = expression.indexOf(COLON);
+    let goodExpr = expression.replace(/>/g, " > ").replace(/\s\s+/g, " ");
+    var spaceIndex = goodExpr.indexOf(SPACE);
+    if (spaceIndex >= 0) {
+        return new CssCompositeSelector(goodExpr, declarations);
+    }
+    
+    let leftSquareBracketIndex = goodExpr.indexOf(LSBRACKET);
+    if (leftSquareBracketIndex === 0) {
+        return new CssAttrSelector(goodExpr, declarations);
+    } 
+    
+    var colonIndex = goodExpr.indexOf(COLON);
     if (colonIndex >= 0) {
-        return new CssVisualStateSelector(expression, declarations);
+        return new CssVisualStateSelector(goodExpr, declarations);
     }
 
-    if (expression.charAt(0) === AMP) {
-        return new CssIdSelector(expression.substring(1), declarations);
+    if (goodExpr.charAt(0) === HASH) {
+        return new CssIdSelector(goodExpr.substring(1), declarations);
     }
 
-    if (expression.charAt(0) === DOT) {
+    if (goodExpr.charAt(0) === DOT) {
         // TODO: Combinations like label.center
-        return new CssClassSelector(expression.substring(1), declarations);
+        return new CssClassSelector(goodExpr.substring(1), declarations);
     }
 
-    return new CssTypeSelector(expression, declarations);
+    return new CssTypeSelector(goodExpr, declarations);
 }
 
 class InlineStyleSelector extends CssSelector {
diff --git a/utils/utils-common.ts b/utils/utils-common.ts
index 4616d2cc6..94cfa5a3f 100644
--- a/utils/utils-common.ts
+++ b/utils/utils-common.ts
@@ -29,6 +29,11 @@ export function parseJSON(source: string): any {
     return JSON.parse(src);
 }
 
+export function escapeRegexSymbols(source: string): string {
+    let escapeRegex = /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g;
+    return source.replace(escapeRegex, "\\$&");
+}
+
 export module layout {
 
     var MODE_SHIFT = 30;
diff --git a/utils/utils.d.ts b/utils/utils.d.ts
index adbbfa2aa..17cb6e9b0 100644
--- a/utils/utils.d.ts
+++ b/utils/utils.d.ts
@@ -229,4 +229,10 @@
      * @param url The url.
      */
     export function openUrl(url: string): boolean
+    
+    /**
+     * Escapes special regex symbols (., *, ^, $ and so on) in string in order to create a valid regex from it.
+     * @param source The original value. 
+     */
+    export function escapeRegexSymbols(source: string): string
 }