diff --git a/packages/core/src/components/app/app.scss b/packages/core/src/components/app/app.scss
index 992e98ad75..6fa5f0a1fa 100644
--- a/packages/core/src/components/app/app.scss
+++ b/packages/core/src/components/app/app.scss
@@ -235,7 +235,7 @@ ion-page,
   width: 100%;
   height: 100%;
 
-  contain: strict;
+  contain: layout size style;
 }
 
 // Page Container Structure
diff --git a/packages/core/src/components/content/content.tsx b/packages/core/src/components/content/content.tsx
index c6b17ec903..a1a3bf678b 100644
--- a/packages/core/src/components/content/content.tsx
+++ b/packages/core/src/components/content/content.tsx
@@ -87,8 +87,10 @@ export class Content {
       return;
     }
     if (this.fullscreen) {
-      Context.dom.read(this.readDimensions.bind(this));
-      Context.dom.write(this.writeDimensions.bind(this));
+      Context.dom.raf(() => {
+        Context.dom.read(this.readDimensions.bind(this));
+        Context.dom.write(this.writeDimensions.bind(this));
+      });
     } else {
       this.cTop = this.cBottom = null;
       Context.dom.write(() => this.scrollEl.removeAttribute('style'));
diff --git a/packages/core/src/components/tabs/page-tab.tsx b/packages/core/src/components/tabs/page-tab.tsx
index ab5983309b..9d1964968f 100644
--- a/packages/core/src/components/tabs/page-tab.tsx
+++ b/packages/core/src/components/tabs/page-tab.tsx
@@ -39,7 +39,7 @@ export class PageTab {
           <ion-title>Tab page</ion-title>
         </ion-toolbar>
       </ion-header>,
-      <ion-content>
+      <ion-content fullscreen={true}>
         <p>
           <h2>Set tabbar layout</h2>
           <ion-button onClick={() => this.setLayout('icon-top')}>icon-top</ion-button>
diff --git a/packages/core/src/components/tabs/tabs.scss b/packages/core/src/components/tabs/tabs.scss
index aa083afd8a..dbc366c0b7 100644
--- a/packages/core/src/components/tabs/tabs.scss
+++ b/packages/core/src/components/tabs/tabs.scss
@@ -12,7 +12,7 @@ ion-tabs {
 
   flex: 1;
 
-  contain: strict;
+  contain: layout size style;
 }
 
 ion-tab {
@@ -25,7 +25,7 @@ ion-tab {
   width: 100%;
   height: 100%;
 
-  contain: strict;
+  contain: layout size style;
 }
 
 ion-tab.show-tab {
diff --git a/packages/core/src/utils/helpers.ts b/packages/core/src/utils/helpers.ts
index db1a8c371e..e04035f783 100644
--- a/packages/core/src/utils/helpers.ts
+++ b/packages/core/src/utils/helpers.ts
@@ -139,6 +139,10 @@ export function getParentElement(elm: any) {
 }
 
 export function getPageElement(el: HTMLElement) {
+  const tabs = el.closest('ion-tabs');
+  if (tabs) {
+    return tabs;
+  }
   const page = el.closest('ion-page,.ion-page,page-inner');
   if (page) {
     return page;