diff --git a/react/package.json b/react/package.json
index e5d50f7ec39..6de301ead87 100644
--- a/react/package.json
+++ b/react/package.json
@@ -48,7 +48,7 @@
     "react-dom": "^16.7.0",
     "react-router": "^4.3.1",
     "react-router-dom": "^4.3.1",
-    "react-testing-library": "^5.5.3",
+    "react-testing-library": "^7.0.0",
     "ts-jest": "^23.10.5",
     "typescript": "^3.2.2"
   },
diff --git a/react/src/components/IonActionSheet.tsx b/react/src/components/IonActionSheet.tsx
index e16b26ab5ca..2cb2d94a7c9 100644
--- a/react/src/components/IonActionSheet.tsx
+++ b/react/src/components/IonActionSheet.tsx
@@ -1,7 +1,8 @@
 import { Components } from '@ionic/core';
 import { createOverlayComponent } from './createOverlayComponent';
+import { ReactProps } from './ReactProps';
 
 export type ActionSheetOptions = Components.IonActionSheetAttributes;
 
-const IonActionSheet = createOverlayComponent<ActionSheetOptions, HTMLIonActionSheetElement, HTMLIonActionSheetControllerElement>('ion-action-sheet', 'ion-action-sheet-controller')
+const IonActionSheet = createOverlayComponent<ActionSheetOptions & ReactProps, HTMLIonActionSheetElement, HTMLIonActionSheetControllerElement>('ion-action-sheet', 'ion-action-sheet-controller')
 export default IonActionSheet;
diff --git a/react/src/components/IonAlert.tsx b/react/src/components/IonAlert.tsx
index 60c4a27035d..f2d3a9e7a72 100644
--- a/react/src/components/IonAlert.tsx
+++ b/react/src/components/IonAlert.tsx
@@ -1,7 +1,8 @@
 import { Components } from '@ionic/core';
 import { createControllerComponent } from './createControllerComponent';
+import { ReactProps } from './ReactProps';
 
 export type AlertOptions = Components.IonAlertAttributes;
 
-const IonAlert = createControllerComponent<AlertOptions, HTMLIonAlertElement, HTMLIonAlertControllerElement>('ion-alert', 'ion-alert-controller')
+const IonAlert = createControllerComponent<AlertOptions & ReactProps, HTMLIonAlertElement, HTMLIonAlertControllerElement>('ion-alert', 'ion-alert-controller')
 export default IonAlert;
diff --git a/react/src/components/IonLoading.tsx b/react/src/components/IonLoading.tsx
index 66c4d2379a5..6cfdae36718 100644
--- a/react/src/components/IonLoading.tsx
+++ b/react/src/components/IonLoading.tsx
@@ -1,7 +1,8 @@
 import { Components } from '@ionic/core';
 import { createControllerComponent } from './createControllerComponent';
+import { ReactProps } from './ReactProps';
 
 export type LoadingOptions = Components.IonLoadingAttributes;
 
-const IonLoading = createControllerComponent<LoadingOptions, HTMLIonLoadingElement, HTMLIonLoadingControllerElement>('ion-loading', 'ion-loading-controller')
+const IonLoading = createControllerComponent<LoadingOptions & ReactProps, HTMLIonLoadingElement, HTMLIonLoadingControllerElement>('ion-loading', 'ion-loading-controller')
 export default IonLoading;
diff --git a/react/src/components/IonModal.tsx b/react/src/components/IonModal.tsx
index 50e452c0f42..ed92ab14641 100644
--- a/react/src/components/IonModal.tsx
+++ b/react/src/components/IonModal.tsx
@@ -1,10 +1,11 @@
 import { Components } from '@ionic/core';
 import { createOverlayComponent } from './createOverlayComponent';
 import { Omit } from '../types';
+import { ReactProps } from './ReactProps';
 
 export type ModalOptions = Omit<Components.IonModalAttributes,  'component' | 'componentProps'> & {
   children: React.ReactNode;
 };
 
-const IonModal = createOverlayComponent<ModalOptions, HTMLIonModalElement, HTMLIonModalControllerElement>('ion-modal', 'ion-modal-controller')
+const IonModal = createOverlayComponent<ModalOptions & ReactProps, HTMLIonModalElement, HTMLIonModalControllerElement>('ion-modal', 'ion-modal-controller')
 export default IonModal;
diff --git a/react/src/components/IonPopover.tsx b/react/src/components/IonPopover.tsx
index 65dd5d623f8..d6a99ad7ee7 100644
--- a/react/src/components/IonPopover.tsx
+++ b/react/src/components/IonPopover.tsx
@@ -1,10 +1,11 @@
 import { Components } from '@ionic/core';
 import { createOverlayComponent } from './createOverlayComponent';
 import { Omit } from '../types';
+import { ReactProps } from './ReactProps';
 
 export type PopoverOptions = Omit<Components.IonPopoverAttributes, 'component' | 'componentProps'> & {
   children: React.ReactNode;
 };
 
-const IonPopover = createOverlayComponent<PopoverOptions, HTMLIonPopoverElement, HTMLIonPopoverControllerElement>('ion-popover', 'ion-popover-controller')
+const IonPopover = createOverlayComponent<PopoverOptions & ReactProps, HTMLIonPopoverElement, HTMLIonPopoverControllerElement>('ion-popover', 'ion-popover-controller')
 export default IonPopover;
diff --git a/react/src/components/IonToast.tsx b/react/src/components/IonToast.tsx
index 952376095fa..a58b034fe6f 100644
--- a/react/src/components/IonToast.tsx
+++ b/react/src/components/IonToast.tsx
@@ -1,7 +1,8 @@
 import { Components } from '@ionic/core';
 import { createControllerComponent } from './createControllerComponent';
+import { ReactProps } from './ReactProps';
 
 export type ToastOptions = Components.IonToastAttributes;
 
-const IonToast = createControllerComponent<ToastOptions, HTMLIonToastElement, HTMLIonToastControllerElement>('ion-toast', 'ion-toast-controller')
+const IonToast = createControllerComponent<ToastOptions & ReactProps, HTMLIonToastElement, HTMLIonToastControllerElement>('ion-toast', 'ion-toast-controller')
 export default IonToast;
diff --git a/react/src/components/ReactProps.ts b/react/src/components/ReactProps.ts
new file mode 100644
index 00000000000..6e5ba8021cb
--- /dev/null
+++ b/react/src/components/ReactProps.ts
@@ -0,0 +1,3 @@
+export interface ReactProps {
+  className?: string;
+}
diff --git a/react/src/components/__tests__/createComponent.spec.tsx b/react/src/components/__tests__/createComponent.spec.tsx
index 2d5de2719b5..735c435a5a0 100644
--- a/react/src/components/__tests__/createComponent.spec.tsx
+++ b/react/src/components/__tests__/createComponent.spec.tsx
@@ -1,7 +1,8 @@
 import React from 'react';
 import { Components } from '@ionic/core';
 import { createReactComponent } from '../createComponent';
-import { render, fireEvent, cleanup } from 'react-testing-library';
+import { render, fireEvent, cleanup, RenderResult } from 'react-testing-library';
+import { IonButton } from '../index';
 
 afterEach(cleanup);
 
@@ -47,3 +48,88 @@ describe('createComponent - ref', () => {
     expect(ionButtonRef.current).toEqual(ionButtonItem);
   });
 });
+
+describe('when working with css classes', () => {
+  const myClass = 'my-class'
+  const myClass2 = 'my-class2'
+  const customClass = 'custom-class';
+
+  describe('when a class is added to className', () => {
+    let renderResult: RenderResult;
+    let button: HTMLElement;
+
+    beforeEach(() => {
+      renderResult = render(
+        <IonButton className={myClass}>
+          Hello!
+        </IonButton>
+      );
+      button = renderResult.getByText(/Hello/);
+    });
+
+    it('then it should be in the class list', () => {
+      expect(button.classList.contains(myClass)).toBeTruthy();
+    });
+
+    it('when a class is added to class list outside of React, then that class should still be in class list when rendered again', () => {
+      button.classList.add(customClass);
+      expect(button.classList.contains(customClass)).toBeTruthy();
+      renderResult.rerender(
+        <IonButton className={myClass}>
+          Hello!
+        </IonButton>
+      );
+      expect(button.classList.contains(customClass)).toBeTruthy();
+    });
+  });
+
+  describe('when multiple classes are added to className', () => {
+    let renderResult: RenderResult;
+    let button: HTMLElement;
+
+    beforeEach(() => {
+      renderResult = render(
+        <IonButton className={myClass + ' ' + myClass2}>
+          Hello!
+        </IonButton>
+      );
+      button = renderResult.getByText(/Hello/);
+    });
+
+    it('then both classes should be in class list', () => {
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass2)).toBeTruthy();
+    });
+
+    it('when one of the classes is removed, then only the remaining class should be in class list', () => {
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass2)).toBeTruthy();
+
+      renderResult.rerender(
+        <IonButton className={myClass}>
+          Hello!
+        </IonButton>
+      );
+
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass2)).toBeFalsy();
+    });
+
+    it('when a custom class is added outside of React and one of the classes is removed, then only the remaining class and the custom class should be in class list', () => {
+      button.classList.add(customClass);
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass2)).toBeTruthy();
+      expect(button.classList.contains(customClass)).toBeTruthy();
+
+      renderResult.rerender(
+        <IonButton className={myClass}>
+          Hello!
+        </IonButton>
+      );
+
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass)).toBeTruthy();
+      expect(button.classList.contains(myClass2)).toBeFalsy();
+    });
+  })
+});
diff --git a/react/src/components/__tests__/createControllerComponent.spec.tsx b/react/src/components/__tests__/createControllerComponent.spec.tsx
index 2d30934d8f4..bbac8777cc7 100644
--- a/react/src/components/__tests__/createControllerComponent.spec.tsx
+++ b/react/src/components/__tests__/createControllerComponent.spec.tsx
@@ -68,7 +68,7 @@ describe('createControllerComponent - events', () => {
       duration: 2000,
       children: 'ButtonNameA',
       onIonLoadingDidDismiss: onDidDismiss
-    });
+    }, expect.any(Object));
   });
 
   test('should dismiss component on hiding', async () => {
diff --git a/react/src/components/__tests__/createOverlayComponent.spec.tsx b/react/src/components/__tests__/createOverlayComponent.spec.tsx
index 11247e6c630..ae6550eb23d 100644
--- a/react/src/components/__tests__/createOverlayComponent.spec.tsx
+++ b/react/src/components/__tests__/createOverlayComponent.spec.tsx
@@ -65,7 +65,7 @@ describe('createOverlayComponent - events', () => {
     expect(attachEventPropsSpy).toHaveBeenCalledWith(element, {
       buttons: [],
       onIonActionSheetDidDismiss: onDidDismiss
-    });
+    }, expect.any(Object));
   });
 
   test('should dismiss component on hiding', async () => {
diff --git a/react/src/components/createComponent.tsx b/react/src/components/createComponent.tsx
index ee863daf8f0..8ecf764086d 100644
--- a/react/src/components/createComponent.tsx
+++ b/react/src/components/createComponent.tsx
@@ -2,24 +2,24 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import { dashToPascalCase, attachEventProps } from './utils';
 
-export function createReactComponent<T extends object, E>(tagName: string) {
+export function createReactComponent<PropType, ElementType>(tagName: string) {
   const displayName = dashToPascalCase(tagName);
 
   type IonicReactInternalProps = {
-    forwardedRef?: React.RefObject<E>;
+    forwardedRef?: React.RefObject<ElementType>;
     children?: React.ReactNode;
   }
-  type InternalProps = T & IonicReactInternalProps;
+  type InternalProps = PropType & IonicReactInternalProps;
 
   type IonicReactExternalProps = {
-    ref?: React.RefObject<E>;
+    ref?: React.RefObject<ElementType>;
     children?: React.ReactNode;
   }
 
   class ReactComponent extends React.Component<InternalProps> {
-    componentRef: React.RefObject<E>;
+    componentRef: React.RefObject<ElementType>;
 
-    constructor(props: T & IonicReactInternalProps) {
+    constructor(props: PropType & IonicReactInternalProps) {
       super(props);
       this.componentRef = React.createRef();
     }
@@ -34,8 +34,7 @@ export function createReactComponent<T extends object, E>(tagName: string) {
 
     componentWillReceiveProps(props: InternalProps) {
       const node = ReactDOM.findDOMNode(this) as HTMLElement;
-
-      attachEventProps(node, props);
+      attachEventProps(node, props, this.props);
     }
 
     render() {
@@ -52,10 +51,10 @@ export function createReactComponent<T extends object, E>(tagName: string) {
     }
   }
 
-  function forwardRef(props: InternalProps, ref: React.RefObject<E>) {
+  function forwardRef(props: InternalProps, ref: React.RefObject<ElementType>) {
     return <ReactComponent {...props} forwardedRef={ref} />;
   }
   forwardRef.displayName = displayName;
 
-  return React.forwardRef<E, T & IonicReactExternalProps>(forwardRef);
+  return React.forwardRef<ElementType, PropType & IonicReactExternalProps>(forwardRef);
 }
diff --git a/react/src/components/createControllerComponent.tsx b/react/src/components/createControllerComponent.tsx
index b2a46834d6a..f467b071e10 100644
--- a/react/src/components/createControllerComponent.tsx
+++ b/react/src/components/createControllerComponent.tsx
@@ -45,7 +45,7 @@ export function createControllerComponent<T extends object, E extends OverlayCom
         }
 
         this.element = await this.controllerElement.create(elementProps);
-        attachEventProps(this.element, elementProps);
+        attachEventProps(this.element, elementProps, prevProps);
 
         await this.element.present();
       }
diff --git a/react/src/components/createOverlayComponent.tsx b/react/src/components/createOverlayComponent.tsx
index e3a3177722b..09c11d81c89 100644
--- a/react/src/components/createOverlayComponent.tsx
+++ b/react/src/components/createOverlayComponent.tsx
@@ -52,7 +52,7 @@ export function createOverlayComponent<T extends object, E extends OverlayCompon
           component: this.el,
           componentProps: {}
         });
-        attachEventProps(this.element, elementProps);
+        attachEventProps(this.element, elementProps, prevProps);
 
         await this.element.present();
       }
diff --git a/react/src/components/index.ts b/react/src/components/index.ts
index a07ad68767c..9b2823c5276 100644
--- a/react/src/components/index.ts
+++ b/react/src/components/index.ts
@@ -4,6 +4,7 @@ import { defineCustomElements } from '@ionic/core/loader';
 import { Components as IoniconsComponents } from 'ionicons';
 import { Components } from '@ionic/core';
 import { createReactComponent } from './createComponent';
+import { ReactProps } from './ReactProps';
 export { AlertButton, AlertInput } from '@ionic/core';
 
 // createControllerComponent
@@ -26,81 +27,81 @@ addIcons(ICON_PATHS);
 defineCustomElements(window);
 
 // ionicons
-export const IonIcon = createReactComponent<IoniconsComponents.IonIconAttributes, HTMLIonIconElement>('ion-icon');
+export const IonIcon = createReactComponent<IoniconsComponents.IonIconAttributes & ReactProps, HTMLIonIconElement>('ion-icon');
 
 // createReactComponent
-export const IonTabBarInner = createReactComponent<Components.IonTabBarAttributes, HTMLIonTabBarElement>('ion-tab-bar');
-export const IonRouterOutletInner = createReactComponent<Components.IonRouterOutletAttributes, HTMLIonRouterOutletElement>('ion-router-outlet');
-export const IonBackButtonInner = createReactComponent<Components.IonBackButtonAttributes, HTMLIonBackButtonElement>('ion-back-button');
-export const IonTab = createReactComponent<Components.IonTabAttributes, HTMLIonTabElement>('ion-tab');
-export const IonTabButton = createReactComponent<Components.IonTabButtonAttributes, HTMLIonTabButtonElement>('ion-tab-button');
-export const IonAnchor = createReactComponent<Components.IonAnchorAttributes, HTMLIonAnchorElement>('ion-anchor');
-export const IonApp = createReactComponent<Components.IonAppAttributes, HTMLIonAppElement>('ion-app');
-export const IonAvatar = createReactComponent<Components.IonAvatarAttributes, HTMLIonAvatarElement>('ion-avatar');
-export const IonBackdrop = createReactComponent<Components.IonBackdropAttributes, HTMLIonBackdropElement>('ion-backdrop');
-export const IonBadge = createReactComponent<Components.IonBadgeAttributes, HTMLIonBadgeElement>('ion-badge');
-export const IonButton = createReactComponent<Components.IonButtonAttributes, HTMLIonButtonElement>('ion-button');
-export const IonButtons = createReactComponent<Components.IonButtonsAttributes, HTMLIonButtonsElement>('ion-buttons');
-export const IonCard = createReactComponent<Components.IonCardAttributes, HTMLIonCardElement>('ion-card');
-export const IonCardContent = createReactComponent<Components.IonCardContentAttributes, HTMLIonCardContentElement>('ion-card-content');
-export const IonCardHeader = createReactComponent<Components.IonCardHeaderAttributes, HTMLIonCardHeaderElement>('ion-card-header');
-export const IonCardSubtitle = createReactComponent<Components.IonCardSubtitleAttributes, HTMLIonCardSubtitleElement>('ion-card-subtitle');
-export const IonCardTitle = createReactComponent<Components.IonCardTitleAttributes, HTMLIonCardTitleElement>('ion-card-title');
-export const IonCheckbox = createReactComponent<Components.IonCheckboxAttributes, HTMLIonCheckboxElement>('ion-checkbox');
-export const IonCol = createReactComponent<Components.IonColAttributes, HTMLIonColElement>('ion-col');
-export const IonContent = createReactComponent<Components.IonContentAttributes, HTMLIonContentElement>('ion-content');
-export const IonChip = createReactComponent<Components.IonChipAttributes, HTMLIonChipElement>('ion-chip');
-export const IonDatetime = createReactComponent<Components.IonDatetimeAttributes, HTMLIonDatetimeElement>('ion-datetime');
-export const IonFab= createReactComponent<Components.IonFabAttributes, HTMLIonFabElement>('ion-fab');
-export const IonFabButton= createReactComponent<Components.IonFabButtonAttributes, HTMLIonFabButtonElement>('ion-fab-button');
-export const IonFabList = createReactComponent<Components.IonFabListAttributes, HTMLIonFabListElement>('ion-fab-list');
-export const IonFooter = createReactComponent<Components.IonFooterAttributes, HTMLIonFooterElement>('ion-footer');
-export const IonGrid = createReactComponent<Components.IonGridAttributes, HTMLIonGridElement>('ion-grid');
-export const IonHeader = createReactComponent<Components.IonHeaderAttributes, HTMLIonHeaderElement>('ion-header');
-export const IonImg = createReactComponent<Components.IonImgAttributes, HTMLIonImgElement>('ion-img');
-export const IonInfiniteScroll = createReactComponent<Components.IonInfiniteScrollAttributes, HTMLIonInfiniteScrollElement>('ion-infinite-scroll');
-export const IonInput = createReactComponent<Components.IonInputAttributes, HTMLIonInputElement>('ion-input');
-export const IonItem = createReactComponent<Components.IonItemAttributes, HTMLIonItemElement>('ion-item');
-export const IonItemDivider = createReactComponent<Components.IonItemDividerAttributes, HTMLIonItemDividerElement>('ion-item-divider');
-export const IonItemGroup = createReactComponent<Components.IonItemGroupAttributes, HTMLIonItemGroupElement>('ion-item-group');
-export const IonItemOption = createReactComponent<Components.IonItemOptionAttributes, HTMLIonItemOptionElement>('ion-item-option');
-export const IonItemOptions = createReactComponent<Components.IonItemOptionsAttributes, HTMLIonItemOptionsElement>('ion-item-options');
-export const IonItemSliding = createReactComponent<Components.IonItemSlidingAttributes, HTMLIonItemSlidingElement>('ion-item-sliding');
-export const IonLabel = createReactComponent<Components.IonLabelAttributes, HTMLIonLabelElement>('ion-label');
-export const IonList = createReactComponent<Components.IonListAttributes, HTMLIonListElement>('ion-list');
-export const IonListHeader = createReactComponent<Components.IonListHeaderAttributes, HTMLIonListHeaderElement>('ion-list-header');
-export const IonMenu = createReactComponent<Components.IonMenuAttributes, HTMLIonMenuElement>('ion-menu');
-export const IonMenuButton = createReactComponent<Components.IonMenuButtonAttributes, HTMLIonMenuButtonElement>('ion-menu-button');
-export const IonMenuToggle = createReactComponent<Components.IonMenuToggleAttributes, HTMLIonMenuToggleElement>('ion-menu-toggle');
-export const IonNote = createReactComponent<Components.IonNoteAttributes, HTMLIonNoteElement>('ion-note');
-export const IonPicker = createReactComponent<Components.IonPickerAttributes, HTMLIonPickerElement>('ion-picker');
-export const IonPickerColumn = createReactComponent<Components.IonPickerColumnAttributes, HTMLIonPickerColumnElement>('ion-picker-column');
-export const IonNav = createReactComponent<Components.IonNavAttributes, HTMLIonNavElement>('ion-nav');
-export const IonProgressBar = createReactComponent<Components.IonProgressBarAttributes, HTMLIonProgressBarElement>('ion-progress-bar');
-export const IonRadio = createReactComponent<Components.IonRadioAttributes, HTMLIonRadioElement>('ion-radio');
-export const IonRadioGroup = createReactComponent<Components.IonRadioGroupAttributes, HTMLIonRadioGroupElement>('ion-radio-group');
-export const IonRange = createReactComponent<Components.IonRangeAttributes, HTMLIonRangeElement>('ion-range');
-export const IonRefresher = createReactComponent<Components.IonRefresherAttributes, HTMLIonRefresherElement>('ion-refresher');
-export const IonRefresherContent = createReactComponent<Components.IonRefresherContentAttributes, HTMLIonRefresherContentElement>('ion-refresher-content');
-export const IonReorder = createReactComponent<Components.IonReorderAttributes, HTMLIonReorderElement>('ion-reorder');
-export const IonReorderGroup = createReactComponent<Components.IonReorderGroupAttributes, HTMLIonReorderGroupElement>('ion-reorder-group');
-export const IonRippleEffect = createReactComponent<Components.IonRippleEffectAttributes, HTMLIonRippleEffectElement>('ion-ripple-effect');
-export const IonRow = createReactComponent<Components.IonRowAttributes, HTMLIonRowElement>('ion-row');
-export const IonSearchbar= createReactComponent<Components.IonSearchbarAttributes, HTMLIonSearchbarElement>('ion-searchbar');
-export const IonSegment= createReactComponent<Components.IonSegmentAttributes, HTMLIonSegmentElement>('ion-segment');
-export const IonSegmentButton= createReactComponent<Components.IonSegmentButtonAttributes, HTMLIonSegmentButtonElement>('ion-segment-button');
-export const IonSelect = createReactComponent<Components.IonSelectAttributes, HTMLIonSelectElement>('ion-select');
-export const IonSelectOption = createReactComponent<Components.IonSelectOptionAttributes, HTMLIonSelectOptionElement>('ion-select-option');
-export const IonSelectPopover = createReactComponent<Components.IonSelectPopoverAttributes, HTMLIonSelectPopoverElement>('ion-select-popover');
-export const IonSkeletonText = createReactComponent<Components.IonSkeletonTextAttributes, HTMLIonSkeletonTextElement>('ion-skeleton-text');
-export const IonSlide = createReactComponent<Components.IonSlideAttributes, HTMLIonSlideElement>('ion-slide');
-export const IonSlides = createReactComponent<Components.IonSlidesAttributes, HTMLIonSlidesElement>('ion-slides');
-export const IonSpinner = createReactComponent<Components.IonSpinnerAttributes, HTMLIonSpinnerElement>('ion-spinner');
-export const IonSplitPane = createReactComponent<Components.IonSplitPaneAttributes, HTMLIonSplitPaneElement>('ion-split-pane');
-export const IonText = createReactComponent<Components.IonTextAttributes, HTMLIonTextElement>('ion-text');
-export const IonTextarea = createReactComponent<Components.IonTextareaAttributes, HTMLIonTextareaElement>('ion-textarea');
-export const IonThumbnail = createReactComponent<Components.IonThumbnailAttributes, HTMLIonThumbnailElement>('ion-thumbnail');
-export const IonTitle = createReactComponent<Components.IonTitleAttributes, HTMLIonTitleElement>('ion-title');
-export const IonToggle = createReactComponent<Components.IonToggleAttributes, HTMLIonToggleElement>('ion-toggle');
-export const IonToolbar = createReactComponent<Components.IonToolbarAttributes, HTMLIonToolbarElement>('ion-toolbar');
-export const IonVirtualScroll = createReactComponent<Components.IonVirtualScrollAttributes, HTMLIonVirtualScrollElement>('ion-virtual-scroll');
+export const IonTabBarInner = createReactComponent<Components.IonTabBarAttributes & ReactProps, HTMLIonTabBarElement>('ion-tab-bar');
+export const IonRouterOutletInner = createReactComponent<Components.IonRouterOutletAttributes & ReactProps, HTMLIonRouterOutletElement>('ion-router-outlet');
+export const IonBackButtonInner = createReactComponent<Components.IonBackButtonAttributes & ReactProps, HTMLIonBackButtonElement>('ion-back-button');
+export const IonTab = createReactComponent<Components.IonTabAttributes & ReactProps, HTMLIonTabElement>('ion-tab');
+export const IonTabButton = createReactComponent<Components.IonTabButtonAttributes & ReactProps, HTMLIonTabButtonElement>('ion-tab-button');
+export const IonAnchor = createReactComponent<Components.IonAnchorAttributes & ReactProps, HTMLIonAnchorElement>('ion-anchor');
+export const IonApp = createReactComponent<Components.IonAppAttributes & ReactProps, HTMLIonAppElement>('ion-app');
+export const IonAvatar = createReactComponent<Components.IonAvatarAttributes & ReactProps, HTMLIonAvatarElement>('ion-avatar');
+export const IonBackdrop = createReactComponent<Components.IonBackdropAttributes & ReactProps, HTMLIonBackdropElement>('ion-backdrop');
+export const IonBadge = createReactComponent<Components.IonBadgeAttributes & ReactProps, HTMLIonBadgeElement>('ion-badge');
+export const IonButton = createReactComponent<Components.IonButtonAttributes & ReactProps, HTMLIonButtonElement>('ion-button');
+export const IonButtons = createReactComponent<Components.IonButtonsAttributes & ReactProps, HTMLIonButtonsElement>('ion-buttons');
+export const IonCard = createReactComponent<Components.IonCardAttributes & ReactProps, HTMLIonCardElement>('ion-card');
+export const IonCardContent = createReactComponent<Components.IonCardContentAttributes & ReactProps, HTMLIonCardContentElement>('ion-card-content');
+export const IonCardHeader = createReactComponent<Components.IonCardHeaderAttributes & ReactProps, HTMLIonCardHeaderElement>('ion-card-header');
+export const IonCardSubtitle = createReactComponent<Components.IonCardSubtitleAttributes & ReactProps, HTMLIonCardSubtitleElement>('ion-card-subtitle');
+export const IonCardTitle = createReactComponent<Components.IonCardTitleAttributes & ReactProps, HTMLIonCardTitleElement>('ion-card-title');
+export const IonCheckbox = createReactComponent<Components.IonCheckboxAttributes & ReactProps, HTMLIonCheckboxElement>('ion-checkbox');
+export const IonCol = createReactComponent<Components.IonColAttributes & ReactProps, HTMLIonColElement>('ion-col');
+export const IonContent = createReactComponent<Components.IonContentAttributes & ReactProps, HTMLIonContentElement>('ion-content');
+export const IonChip = createReactComponent<Components.IonChipAttributes & ReactProps, HTMLIonChipElement>('ion-chip');
+export const IonDatetime = createReactComponent<Components.IonDatetimeAttributes & ReactProps, HTMLIonDatetimeElement>('ion-datetime');
+export const IonFab= createReactComponent<Components.IonFabAttributes & ReactProps, HTMLIonFabElement>('ion-fab');
+export const IonFabButton= createReactComponent<Components.IonFabButtonAttributes & ReactProps, HTMLIonFabButtonElement>('ion-fab-button');
+export const IonFabList = createReactComponent<Components.IonFabListAttributes & ReactProps, HTMLIonFabListElement>('ion-fab-list');
+export const IonFooter = createReactComponent<Components.IonFooterAttributes & ReactProps, HTMLIonFooterElement>('ion-footer');
+export const IonGrid = createReactComponent<Components.IonGridAttributes & ReactProps, HTMLIonGridElement>('ion-grid');
+export const IonHeader = createReactComponent<Components.IonHeaderAttributes & ReactProps, HTMLIonHeaderElement>('ion-header');
+export const IonImg = createReactComponent<Components.IonImgAttributes & ReactProps, HTMLIonImgElement>('ion-img');
+export const IonInfiniteScroll = createReactComponent<Components.IonInfiniteScrollAttributes & ReactProps, HTMLIonInfiniteScrollElement>('ion-infinite-scroll');
+export const IonInput = createReactComponent<Components.IonInputAttributes & ReactProps, HTMLIonInputElement>('ion-input');
+export const IonItem = createReactComponent<Components.IonItemAttributes & ReactProps, HTMLIonItemElement>('ion-item');
+export const IonItemDivider = createReactComponent<Components.IonItemDividerAttributes & ReactProps, HTMLIonItemDividerElement>('ion-item-divider');
+export const IonItemGroup = createReactComponent<Components.IonItemGroupAttributes & ReactProps, HTMLIonItemGroupElement>('ion-item-group');
+export const IonItemOption = createReactComponent<Components.IonItemOptionAttributes & ReactProps, HTMLIonItemOptionElement>('ion-item-option');
+export const IonItemOptions = createReactComponent<Components.IonItemOptionsAttributes & ReactProps, HTMLIonItemOptionsElement>('ion-item-options');
+export const IonItemSliding = createReactComponent<Components.IonItemSlidingAttributes & ReactProps, HTMLIonItemSlidingElement>('ion-item-sliding');
+export const IonLabel = createReactComponent<Components.IonLabelAttributes & ReactProps, HTMLIonLabelElement>('ion-label');
+export const IonList = createReactComponent<Components.IonListAttributes & ReactProps, HTMLIonListElement>('ion-list');
+export const IonListHeader = createReactComponent<Components.IonListHeaderAttributes & ReactProps, HTMLIonListHeaderElement>('ion-list-header');
+export const IonMenu = createReactComponent<Components.IonMenuAttributes & ReactProps, HTMLIonMenuElement>('ion-menu');
+export const IonMenuButton = createReactComponent<Components.IonMenuButtonAttributes & ReactProps, HTMLIonMenuButtonElement>('ion-menu-button');
+export const IonMenuToggle = createReactComponent<Components.IonMenuToggleAttributes & ReactProps, HTMLIonMenuToggleElement>('ion-menu-toggle');
+export const IonNote = createReactComponent<Components.IonNoteAttributes & ReactProps, HTMLIonNoteElement>('ion-note');
+export const IonPicker = createReactComponent<Components.IonPickerAttributes & ReactProps, HTMLIonPickerElement>('ion-picker');
+export const IonPickerColumn = createReactComponent<Components.IonPickerColumnAttributes & ReactProps, HTMLIonPickerColumnElement>('ion-picker-column');
+export const IonNav = createReactComponent<Components.IonNavAttributes & ReactProps, HTMLIonNavElement>('ion-nav');
+export const IonProgressBar = createReactComponent<Components.IonProgressBarAttributes & ReactProps, HTMLIonProgressBarElement>('ion-progress-bar');
+export const IonRadio = createReactComponent<Components.IonRadioAttributes & ReactProps, HTMLIonRadioElement>('ion-radio');
+export const IonRadioGroup = createReactComponent<Components.IonRadioGroupAttributes & ReactProps, HTMLIonRadioGroupElement>('ion-radio-group');
+export const IonRange = createReactComponent<Components.IonRangeAttributes & ReactProps, HTMLIonRangeElement>('ion-range');
+export const IonRefresher = createReactComponent<Components.IonRefresherAttributes & ReactProps, HTMLIonRefresherElement>('ion-refresher');
+export const IonRefresherContent = createReactComponent<Components.IonRefresherContentAttributes & ReactProps, HTMLIonRefresherContentElement>('ion-refresher-content');
+export const IonReorder = createReactComponent<Components.IonReorderAttributes & ReactProps, HTMLIonReorderElement>('ion-reorder');
+export const IonReorderGroup = createReactComponent<Components.IonReorderGroupAttributes & ReactProps, HTMLIonReorderGroupElement>('ion-reorder-group');
+export const IonRippleEffect = createReactComponent<Components.IonRippleEffectAttributes & ReactProps, HTMLIonRippleEffectElement>('ion-ripple-effect');
+export const IonRow = createReactComponent<Components.IonRowAttributes & ReactProps, HTMLIonRowElement>('ion-row');
+export const IonSearchbar= createReactComponent<Components.IonSearchbarAttributes & ReactProps, HTMLIonSearchbarElement>('ion-searchbar');
+export const IonSegment= createReactComponent<Components.IonSegmentAttributes & ReactProps, HTMLIonSegmentElement>('ion-segment');
+export const IonSegmentButton= createReactComponent<Components.IonSegmentButtonAttributes & ReactProps, HTMLIonSegmentButtonElement>('ion-segment-button');
+export const IonSelect = createReactComponent<Components.IonSelectAttributes & ReactProps, HTMLIonSelectElement>('ion-select');
+export const IonSelectOption = createReactComponent<Components.IonSelectOptionAttributes & ReactProps, HTMLIonSelectOptionElement>('ion-select-option');
+export const IonSelectPopover = createReactComponent<Components.IonSelectPopoverAttributes & ReactProps, HTMLIonSelectPopoverElement>('ion-select-popover');
+export const IonSkeletonText = createReactComponent<Components.IonSkeletonTextAttributes & ReactProps, HTMLIonSkeletonTextElement>('ion-skeleton-text');
+export const IonSlide = createReactComponent<Components.IonSlideAttributes & ReactProps, HTMLIonSlideElement>('ion-slide');
+export const IonSlides = createReactComponent<Components.IonSlidesAttributes & ReactProps, HTMLIonSlidesElement>('ion-slides');
+export const IonSpinner = createReactComponent<Components.IonSpinnerAttributes & ReactProps, HTMLIonSpinnerElement>('ion-spinner');
+export const IonSplitPane = createReactComponent<Components.IonSplitPaneAttributes & ReactProps, HTMLIonSplitPaneElement>('ion-split-pane');
+export const IonText = createReactComponent<Components.IonTextAttributes & ReactProps, HTMLIonTextElement>('ion-text');
+export const IonTextarea = createReactComponent<Components.IonTextareaAttributes & ReactProps, HTMLIonTextareaElement>('ion-textarea');
+export const IonThumbnail = createReactComponent<Components.IonThumbnailAttributes & ReactProps, HTMLIonThumbnailElement>('ion-thumbnail');
+export const IonTitle = createReactComponent<Components.IonTitleAttributes & ReactProps, HTMLIonTitleElement>('ion-title');
+export const IonToggle = createReactComponent<Components.IonToggleAttributes & ReactProps, HTMLIonToggleElement>('ion-toggle');
+export const IonToolbar = createReactComponent<Components.IonToolbarAttributes & ReactProps, HTMLIonToolbarElement>('ion-toolbar');
+export const IonVirtualScroll = createReactComponent<Components.IonVirtualScrollAttributes & ReactProps, HTMLIonVirtualScrollElement>('ion-virtual-scroll');
diff --git a/react/src/components/utils/attachEventProps.ts b/react/src/components/utils/attachEventProps.ts
new file mode 100644
index 00000000000..9df26881adf
--- /dev/null
+++ b/react/src/components/utils/attachEventProps.ts
@@ -0,0 +1,83 @@
+export function attachEventProps(node: HTMLElement, newProps: any, oldProps: any = {}) {
+  const className = getClassName(node.classList, newProps, oldProps);
+  if(className) {
+    node.className = className;
+  }
+
+  Object.keys(newProps).forEach(name => {
+    if (name === 'children' || name === 'style' || name === 'ref' || name === 'className') {
+      return;
+    }
+    if (name.indexOf('on') === 0 && name[2] === name[2].toUpperCase()) {
+      const eventName = name.substring(2);
+      const eventNameLc = eventName[0].toLowerCase() + eventName.substring(1);
+
+      if (!isCoveredByReact(eventNameLc)) {
+        syncEvent(node, eventNameLc, newProps[name]);
+      }
+    } else {
+      (node as any)[name] = newProps[name];
+    }
+  });
+}
+
+export function getClassName(classList: DOMTokenList, newProps: any, oldProps: any) {
+  // map the classes to Maps for performance
+  const currentClasses = arrayToMap(classList);
+  const incomingPropClasses = arrayToMap(newProps.className ? newProps.className.split(' ') : []);
+  const oldPropClasses = arrayToMap(oldProps.className ? oldProps.className.split(' ') : []);
+  const finalClassNames: string[] = [];
+  // loop through each of the current classes on the component
+  // to see if it should be a part of the classNames added
+  currentClasses.forEach((currentClass) => {
+    if (incomingPropClasses.has(currentClass)) {
+      // add it as its already included in classnames coming in from newProps
+      finalClassNames.push(currentClass);
+      incomingPropClasses.delete(currentClass);
+    }
+    else if (!oldPropClasses.has(currentClass)) {
+      // add it as it has NOT been removed by user
+      finalClassNames.push(currentClass);
+    }
+  });
+  incomingPropClasses.forEach(s => finalClassNames.push(s));
+  return finalClassNames.join(' ');
+}
+
+/**
+ * Checks if an event is supported in the current execution environment.
+ * @license Modernizr 3.0.0pre (Custom Build) | MIT
+ */
+export function isCoveredByReact(eventNameSuffix: string, doc: Document = document) {
+  const eventName = 'on' + eventNameSuffix;
+  let isSupported = eventName in doc;
+
+  if (!isSupported) {
+    const element = doc.createElement('div');
+    element.setAttribute(eventName, 'return;');
+    isSupported = typeof (<any>element)[eventName] === 'function';
+  }
+
+  return isSupported;
+}
+
+export function syncEvent(node: Element, eventName: string, newEventHandler: (e: Event) => any) {
+  const eventStore = (node as any).__events || ((node as any).__events = {});
+  const oldEventHandler = eventStore[eventName];
+
+  // Remove old listener so they don't double up.
+  if (oldEventHandler) {
+    node.removeEventListener(eventName, oldEventHandler);
+  }
+
+  // Bind new listener.
+  node.addEventListener(eventName, eventStore[eventName] = function handler(e: Event) {
+    newEventHandler.call(this, e);
+  });
+}
+
+function arrayToMap(arr: string[] | DOMTokenList) {
+  const map = new Map<string, string>();
+  arr.forEach((s: string) => map.set(s, s));
+  return map;
+}
diff --git a/react/src/components/utils/index.ts b/react/src/components/utils/index.ts
index 40078c644c8..95592807232 100644
--- a/react/src/components/utils/index.ts
+++ b/react/src/components/utils/index.ts
@@ -1,34 +1,4 @@
-/**
- * Checks if an event is supported in the current execution environment.
- * @license Modernizr 3.0.0pre (Custom Build) | MIT
- */
-export function isCoveredByReact(eventNameSuffix: string, doc: Document = document) {
-  const eventName = 'on' + eventNameSuffix;
-  let isSupported = eventName in doc;
 
-  if (!isSupported) {
-    const element = doc.createElement('div');
-    element.setAttribute(eventName, 'return;');
-    isSupported = typeof (<any>element)[eventName] === 'function';
-  }
-
-  return isSupported;
-}
-
-export function syncEvent(node: Element, eventName: string, newEventHandler: (e: Event) => any) {
-  const eventStore = (node as any).__events || ((node as any).__events = {});
-  const oldEventHandler = eventStore[eventName];
-
-  // Remove old listener so they don't double up.
-  if (oldEventHandler) {
-    node.removeEventListener(eventName, oldEventHandler);
-  }
-
-  // Bind new listener.
-  node.addEventListener(eventName, eventStore[eventName] = function handler(e: Event) {
-    newEventHandler.call(this, e);
-  });
-}
 
 export const dashToPascalCase = (str: string) => str.toLowerCase().split('-').map(segment => segment.charAt(0).toUpperCase() + segment.slice(1)).join('');
 
@@ -41,29 +11,11 @@ export function ensureElementInBody<E extends HTMLElement>(elementName: string):
   return element;
 }
 
-export function attachEventProps<E extends HTMLElement>(node: E, props: any) {
-  Object.keys(props).forEach(name => {
-    if (name === 'children' || name === 'style' || name === 'ref') {
-      return;
-    }
-
-    if (name.indexOf('on') === 0 && name[2] === name[2].toUpperCase()) {
-      const eventName = name.substring(2);
-      const eventNameLc = eventName[0].toLowerCase() + eventName.substring(1);
-
-      if (!isCoveredByReact(eventNameLc)) {
-        syncEvent(node, eventNameLc, props[name]);
-      }
-    } else {
-      (node as any)[name] = props[name];
-    }
-  });
-}
-
-
 export function generateUniqueId() {
   return ([1e7].toString() + -1e3.toString() + -4e3.toString() + -8e3.toString() + -1e11.toString()).replace(/[018]/g, function(c: any) {
     const random = crypto.getRandomValues(new Uint8Array(1)) as Uint8Array;
     return (c ^ random[0] & 15 >> c / 4).toString(16);
   });
 }
+
+export * from './attachEventProps';