diff --git a/aio/content/guide/elements.md b/aio/content/guide/elements.md
index 2a8c78de0a..35b86d2370 100644
--- a/aio/content/guide/elements.md
+++ b/aio/content/guide/elements.md
@@ -1,6 +1,6 @@
 # Angular Elements Overview
 
-Angular Elements are Angular components packaged as custom elements, a web standard for defining new html elements in a framework-agnostic way.
+_Angular elements_ are Angular components packaged as _custom elements_, a web standard for defining new HTML elements in a framework-agnostic way.
 
 [Custom elements](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements) are a Web Platform feature currently supported by Chrome, Opera, and Safari, and available in other browsers through polyfills (see [Browser Support](#browser-support)).
 A custom element extends HTML by allowing you to define a tag whose content is created and controlled by JavaScript code. 
@@ -8,7 +8,16 @@ The browser maintains a `CustomElementRegistry` of defined custom elements (also
 
 The `@angular/elements` package exports a `createCustomElement()` API that provides a bridge from Angular's component interface and change detection functionality to the built-in DOM API. 
 
-Transforming a component to a custom element makes all of the required Angular infrastructure available to the browser. Creating a custom element is simple and straightforward, and automatically connects your component-defined view with change detection and data binding, mapping Angular functionality to the corresponding native HTML equivalents. 
+Transforming a component to a custom element makes all of the required Angular infrastructure available to the browser. 
+Creating a custom element is simple and straightforward, and automatically connects your component-defined view with change detection and data binding, mapping Angular functionality to the corresponding native HTML equivalents. 
+
+<div class="l-sub-section">
+
+    We are working on custom elements that can be used by web apps built on other frameworks. 
+    A minimal, self-contained version of the Angular framework will be injected as a service to support the component's change-detection and data-binding functionality. 
+    For more about the direction of development, check out this [video presentation](https://www.youtube.com/watch?v=Z1gLFPLVJjY&t=4s).
+
+</div>
 
 ## Using custom elements
 
@@ -41,14 +50,6 @@ When your custom element is placed on a page, the browser creates an instance of
 
 <hr class="clear">
 
-<div class="l-sub-section">
-
-    We are working on custom elements that can be used by web apps built on other frameworks. 
-    A minimal, self-contained version of the Angular framework will be injected as a service to support the component's change-detection and data-binding functionality. 
-    For more about the direction of development, check out this [video presentation](https://www.youtube.com/watch?v=vHI5C-9vH-E).
-
-</div>
-
 ## Transforming components to custom elements
 
 Angular provides the `createCustomElement()` function for converting an Angular component,