diff --git a/docs/examples/app/question_title01.py b/docs/examples/app/question_title01.py
index e597a4746..55dc43599 100644
--- a/docs/examples/app/question_title01.py
+++ b/docs/examples/app/question_title01.py
@@ -3,12 +3,13 @@ from textual.widgets import Button, Header, Label
 
 
 class MyApp(App[str]):
+    CSS_PATH = "question02.css"
     TITLE = "A Question App"
     SUB_TITLE = "The most important question"
 
     def compose(self) -> ComposeResult:
         yield Header()
-        yield Label("Do you love Textual?")
+        yield Label("Do you love Textual?", id="question")
         yield Button("Yes", id="yes", variant="primary")
         yield Button("No", id="no", variant="error")
 
diff --git a/docs/examples/app/question_title02.py b/docs/examples/app/question_title02.py
index 91ebf96ab..c279d7e20 100644
--- a/docs/examples/app/question_title02.py
+++ b/docs/examples/app/question_title02.py
@@ -4,12 +4,13 @@ from textual.widgets import Button, Header, Label
 
 
 class MyApp(App[str]):
+    CSS_PATH = "question02.css"
     TITLE = "A Question App"
     SUB_TITLE = "The most important question"
 
     def compose(self) -> ComposeResult:
         yield Header()
-        yield Label("Do you love Textual?")
+        yield Label("Do you love Textual?", id="question")
         yield Button("Yes", id="yes", variant="primary")
         yield Button("No", id="no", variant="error")
 
diff --git a/docs/guide/app.md b/docs/guide/app.md
index b11d02184..eaa874ed3 100644
--- a/docs/guide/app.md
+++ b/docs/guide/app.md
@@ -192,7 +192,7 @@ Textual apps have a `title` attribute which is typically the name of your applic
 By default, `title` will be set to the name of your App class, and `sub_title` is empty.
 You can change these defaults by defining `TITLE` and `SUB_TITLE` class variables. Here's an example of that:
 
-```py title="question_title01.py" hl_lines="6-7 10"
+```py title="question_title01.py" hl_lines="7-8 11"
 --8<-- "docs/examples/app/question_title01.py"
 ```
 
@@ -203,7 +203,7 @@ Note that the title and subtitle are displayed by the builtin [Header](./../widg
 
 You can also set the title attributes dynamically within a method of your app. The following example sets the title and subtitle in response to a key press:
 
-```py title="question_title02.py" hl_lines="19-21"
+```py title="question_title02.py" hl_lines="20-22"
 --8<-- "docs/examples/app/question_title02.py"
 ```