diff --git a/content/home/examples/a-component-using-external-plugins.js b/content/home/examples/a-component-using-external-plugins.js
index 48eac0b62ed..25ad6f55563 100644
--- a/content/home/examples/a-component-using-external-plugins.js
+++ b/content/home/examples/a-component-using-external-plugins.js
@@ -36,4 +36,6 @@ class MarkdownEditor extends React.Component {
   }
 }
 
+// let mountNode = document.querySelector('#markdown')
+
 ReactDOM.render(<MarkdownEditor />, mountNode);
\ No newline at end of file
diff --git a/content/home/examples/a-simple-component.js b/content/home/examples/a-simple-component.js
index 3efa50193f0..9849a573eb4 100644
--- a/content/home/examples/a-simple-component.js
+++ b/content/home/examples/a-simple-component.js
@@ -8,6 +8,8 @@ class HelloMessage extends React.Component {
   }
 }
 
+// let mountNode = document.querySelector('#message')
+
 ReactDOM.render(
   <HelloMessage name="Taylor" />,
   mountNode
diff --git a/content/home/examples/a-stateful-component.js b/content/home/examples/a-stateful-component.js
index 7414fd6ee2a..dba6de4fecc 100644
--- a/content/home/examples/a-stateful-component.js
+++ b/content/home/examples/a-stateful-component.js
@@ -27,4 +27,6 @@ class Timer extends React.Component {
   }
 }
 
+// let mountNode = document.querySelector('#timer')
+
 ReactDOM.render(<Timer />, mountNode);
\ No newline at end of file
diff --git a/content/home/examples/an-application.js b/content/home/examples/an-application.js
index 4fe8988ca90..3f43373ff71 100644
--- a/content/home/examples/an-application.js
+++ b/content/home/examples/an-application.js
@@ -60,4 +60,6 @@ class TodoList extends React.Component {
   }
 }
 
+// let mountNode = document.querySelector('#app')
+
 ReactDOM.render(<TodoApp />, mountNode);