diff --git a/src/modal/docs/readme.md b/src/modal/docs/readme.md
index 9c444f9201..fc3b085bbf 100644
--- a/src/modal/docs/readme.md
+++ b/src/modal/docs/readme.md
@@ -15,6 +15,7 @@ The `$modal` service has only one method: `open(options)` where available option
 * `keyboard` - indicates whether the dialog should be closable by hitting the ESC key, defaults to true
 * `backdropClass` - additional CSS class(es) to be added to a modal backdrop template
 * `windowClass` - additional CSS class(es) to be added to a modal window template
+* `windowTopClass` - CSS class(es) to be added to the top modal window
 * `windowTemplateUrl` - a path to a template overriding modal's window template
 * `size` - optional suffix of modal window class. The value used is appended to the `modal-` class, i.e. a value of `sm` gives `modal-sm`
 * `openedClass` - class added to the `body` element when the modal is opened. Defaults to `modal-open`
diff --git a/src/modal/modal.js b/src/modal/modal.js
index a1359b81c4..bd284c0a02 100644
--- a/src/modal/modal.js
+++ b/src/modal/modal.js
@@ -176,6 +176,7 @@ angular.module('ui.bootstrap.modal', [])
       },
       link: function(scope, element, attrs) {
         element.addClass(attrs.windowClass || '');
+        element.addClass(attrs.windowTopClass || '');
         scope.size = attrs.size;
 
         scope.close = function(evt) {
@@ -340,6 +341,7 @@ angular.module('ui.bootstrap.modal', [])
           var modalBodyClass = modalWindow.openedClass || OPENED_MODAL_CLASS;
           openedClasses.remove(modalBodyClass, modalInstance);
           body.toggleClass(modalBodyClass, openedClasses.hasKey(modalBodyClass));
+          toggleTopWindowClass(true);
         });
         checkRemoveBackdrop();
 
@@ -351,6 +353,16 @@ angular.module('ui.bootstrap.modal', [])
         }
       }
 
+      // Add or remove "windowTopClass" from the top window in the stack
+      function toggleTopWindowClass(toggleSwitch) {
+        var modalWindow;
+
+        if (openedWindows.length() > 0) {
+          modalWindow = openedWindows.top().value;
+          modalWindow.modalDomEl.toggleClass(modalWindow.windowTopClass || '', toggleSwitch);
+        }
+      }
+
       function checkRemoveBackdrop() {
           //remove backdrop if no longer needed
           if (backdropDomEl && backdropIndex() == -1) {
@@ -447,13 +459,16 @@ angular.module('ui.bootstrap.modal', [])
         var modalOpener = $document[0].activeElement,
           modalBodyClass = modal.openedClass || OPENED_MODAL_CLASS;
 
+        toggleTopWindowClass(false);
+
         openedWindows.add(modalInstance, {
           deferred: modal.deferred,
           renderDeferred: modal.renderDeferred,
           modalScope: modal.scope,
           backdrop: modal.backdrop,
           keyboard: modal.keyboard,
-          openedClass: modal.openedClass
+          openedClass: modal.openedClass,
+          windowTopClass: modal.windowTopClass
         });
 
         openedClasses.put(modalBodyClass, modalInstance);
@@ -477,6 +492,7 @@ angular.module('ui.bootstrap.modal', [])
         angularDomEl.attr({
           'template-url': modal.windowTemplateUrl,
           'window-class': modal.windowClass,
+          'window-top-class': modal.windowTopClass,
           'size': modal.size,
           'index': openedWindows.length() - 1,
           'animate': 'animate'
@@ -701,6 +717,7 @@ angular.module('ui.bootstrap.modal', [])
                   backdrop: modalOptions.backdrop,
                   keyboard: modalOptions.keyboard,
                   backdropClass: modalOptions.backdropClass,
+                  windowTopClass: modalOptions.windowTopClass,
                   windowClass: modalOptions.windowClass,
                   windowTemplateUrl: modalOptions.windowTemplateUrl,
                   size: modalOptions.size,
diff --git a/src/modal/test/modal.spec.js b/src/modal/test/modal.spec.js
index 647fc748ab..38afd1c4e4 100644
--- a/src/modal/test/modal.spec.js
+++ b/src/modal/test/modal.spec.js
@@ -773,6 +773,17 @@ describe('$modal', function () {
       });
     });
 
+    describe('top window class', function () {
+      it('should support top class option', function () {
+        open({
+          template: '<div>With custom window top class</div>',
+          windowTopClass: 'top-class'
+        });
+
+        expect($document.find('div.modal')).toHaveClass('top-class');
+      });
+    });
+
     describe('size', function() {
       it('should support creating small modal dialogs', function() {
         open({
@@ -805,7 +816,7 @@ describe('$modal', function () {
     describe('animation', function() {
       it('should have animation fade classes by default', function() {
         open({
-          template: '<div>Small modal dialog</div>',
+          template: '<div>Small modal dialog</div>'
         });
 
         expect($document.find('.modal')).toHaveClass('fade');
@@ -1079,6 +1090,32 @@ describe('$modal', function () {
       permute(3, function(a) { test(a.map(function(x, i) { return i === 0 ? {reject:x} : x; })); });
       permute(3, function(a) { test(a.map(function(x, i) { return i === 1 ? {reject:x} : x; })); });
     });
+
+    it('should have top class only on top window', function () {
+      var modal1 = open({template: '<div>Content1</div>', windowClass: 'modal1', windowTopClass: 'modal-top'});
+      expect($document.find('div.modal1')).toHaveClass('modal-top');
+      expect($document).toHaveModalsOpen(1);
+
+      var modal2 = open({template: '<div>Content1</div>', windowClass: 'modal2', windowTopClass: 'modal-top'});
+      expect($document.find('div.modal1')).not.toHaveClass('modal-top');
+      expect($document.find('div.modal2')).toHaveClass('modal-top');
+      expect($document).toHaveModalsOpen(2);
+
+      var modal3 = open({template: '<div>Content1</div>', windowClass: 'modal3', windowTopClass: 'modal-top'});
+      expect($document.find('div.modal1')).not.toHaveClass('modal-top');
+      expect($document.find('div.modal2')).not.toHaveClass('modal-top');
+      expect($document.find('div.modal3')).toHaveClass('modal-top');
+      expect($document).toHaveModalsOpen(3);
+
+      dismiss(modal2);
+      expect($document.find('div.modal1')).not.toHaveClass('modal-top');
+      expect($document.find('div.modal3')).toHaveClass('modal-top');
+      expect($document).toHaveModalsOpen(2);
+
+      close(modal3);
+      expect($document.find('div.modal1')).toHaveClass('modal-top');
+      expect($document).toHaveModalsOpen(1);
+    });
   });
 
   describe('modal.closing event', function() {
diff --git a/src/modal/test/modalWindow.spec.js b/src/modal/test/modalWindow.spec.js
index 312d607645..da5303f08c 100644
--- a/src/modal/test/modalWindow.spec.js
+++ b/src/modal/test/modalWindow.spec.js
@@ -25,6 +25,15 @@ describe('modal window', function() {
     expect(windowEl).toHaveClass('foo');
   });
 
+  it('should support window top class', function () {
+    $rootScope.animate = false;
+    var windowEl = $compile('<div modal-window animate="animate" window-top-class="test foo">content</div>')($rootScope);
+    $rootScope.$digest();
+
+    expect(windowEl).toHaveClass('test');
+    expect(windowEl).toHaveClass('foo');
+  });
+
   it('should support custom template url', inject(function($templateCache) {
     $templateCache.put('window.html', '<div class="mywindow" ng-transclude></div>');