diff --git a/packages/notebook-extension/style/base.css b/packages/notebook-extension/style/base.css
index 0dedb07d5c..4ba6594771 100644
--- a/packages/notebook-extension/style/base.css
+++ b/packages/notebook-extension/style/base.css
@@ -36,6 +36,7 @@ body[data-notebook='notebooks'] .jp-WindowedPanel-outer {
 
 body[data-notebook='notebooks'] .jp-WindowedPanel-inner {
   margin-top: var(--jp-notebook-toolbar-margin-bottom);
+  max-width: var(--jp-notebook-max-width);
 }
 
 body[data-notebook='notebooks'] .jp-Notebook-cell {
diff --git a/ui-tests/test/general.spec.ts-snapshots/notebook-chromium-linux.png b/ui-tests/test/general.spec.ts-snapshots/notebook-chromium-linux.png
index 0f4e8ce461..62adc49606 100644
Binary files a/ui-tests/test/general.spec.ts-snapshots/notebook-chromium-linux.png and b/ui-tests/test/general.spec.ts-snapshots/notebook-chromium-linux.png differ
diff --git a/ui-tests/test/general.spec.ts-snapshots/notebook-firefox-linux.png b/ui-tests/test/general.spec.ts-snapshots/notebook-firefox-linux.png
index 95d2909e1a..5063ec6cb9 100644
Binary files a/ui-tests/test/general.spec.ts-snapshots/notebook-firefox-linux.png and b/ui-tests/test/general.spec.ts-snapshots/notebook-firefox-linux.png differ