diff --git a/docs/examples/timers/clock.py b/docs/examples/timers/clock.py
index 4eb4cd4c7..c7c568045 100644
--- a/docs/examples/timers/clock.py
+++ b/docs/examples/timers/clock.py
@@ -3,6 +3,7 @@ from datetime import datetime
 from rich.align import Align
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.widget import Widget
 
 
diff --git a/docs/examples/widgets/custom.py b/docs/examples/widgets/custom.py
index 92baa9028..5a239564b 100644
--- a/docs/examples/widgets/custom.py
+++ b/docs/examples/widgets/custom.py
@@ -1,6 +1,7 @@
 from rich.panel import Panel
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.reactive import Reactive
 from textual.widget import Widget
 
diff --git a/e2e_tests/test_apps/basic.py b/e2e_tests/test_apps/basic.py
index 0673b22c5..4cdcdce14 100644
--- a/e2e_tests/test_apps/basic.py
+++ b/e2e_tests/test_apps/basic.py
@@ -1,11 +1,11 @@
 from pathlib import Path
 
-from rich.align import Align
 from rich.console import RenderableType
 from rich.syntax import Syntax
 from rich.text import Text
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.widget import Widget
 from textual.widgets import Static
 
diff --git a/examples/borders.py b/examples/borders.py
index 4179d31fd..4f11d1dd6 100644
--- a/examples/borders.py
+++ b/examples/borders.py
@@ -3,6 +3,7 @@ from rich.padding import Padding
 from rich.text import Text
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.renderables.gradient import VerticalGradient
 from textual import events
 from textual.widgets import Placeholder
diff --git a/examples/calculator.py b/examples/calculator.py
index 9a15b8301..5463c7765 100644
--- a/examples/calculator.py
+++ b/examples/calculator.py
@@ -12,6 +12,7 @@ from rich.padding import Padding
 from rich.text import Text
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.reactive import Reactive
 from textual.views import GridView
 from textual.widget import Widget
diff --git a/sandbox/align.py b/sandbox/align.py
index 382621603..cd2929cf0 100644
--- a/sandbox/align.py
+++ b/sandbox/align.py
@@ -1,6 +1,7 @@
 from rich.text import Text
 
 from textual.app import App, ComposeResult
+from textual.css.styles import Styles
 from textual.widget import Widget
 from textual.widgets import Static
 
diff --git a/sandbox/basic.py b/sandbox/basic.py
index 192d6537a..b21495c4d 100644
--- a/sandbox/basic.py
+++ b/sandbox/basic.py
@@ -3,6 +3,7 @@ from rich.syntax import Syntax
 from rich.text import Text
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.widget import Widget
 from textual.widgets import Static
 
diff --git a/sandbox/dev_sandbox.py b/sandbox/dev_sandbox.py
index 5f78070cc..d332ecca4 100644
--- a/sandbox/dev_sandbox.py
+++ b/sandbox/dev_sandbox.py
@@ -2,6 +2,7 @@ from rich.console import RenderableType
 from rich.panel import Panel
 
 from textual.app import App
+from textual.css.styles import Styles
 from textual.widget import Widget
 
 
diff --git a/sandbox/tabs.py b/sandbox/tabs.py
index 421ef2720..9016ea954 100644
--- a/sandbox/tabs.py
+++ b/sandbox/tabs.py
@@ -6,6 +6,7 @@ from rich.rule import Rule
 
 from textual import events
 from textual.app import App
+from textual.css.styles import Styles
 from textual.widget import Widget
 from textual.widgets.tabs import Tabs, Tab
 
diff --git a/src/textual/app.py b/src/textual/app.py
index a70ec0327..9ca074edb 100644
--- a/src/textual/app.py
+++ b/src/textual/app.py
@@ -40,6 +40,7 @@ from ._context import active_app
 from ._event_broker import extract_handler_actions, NoHandler
 from ._timer import Timer
 from .binding import Bindings, NoBinding
+from .css.styles import Styles
 from .css.stylesheet import Stylesheet
 from .design import ColorSystem
 from .devtools.client import DevtoolsClient, DevtoolsConnectionError, DevtoolsLog