Container max-width is the design system's reading-line discipline. Linear stretches to 1436 px (12% wider than the Tailwind default 1280), Stripe stays compressed at 1080, Webflow goes generous to 1440+. The wider the container, the more reading effort the user expends scanning lines — narrow containers feel editorial, wide containers feel dashboard-y. AI2 Design records the observed value in every brief.
Glossary · spacing
Container Max-width
The widest a bounded content rail allows itself to grow — typically 1080-1536 px on modern marketing sites.
Catalogued examples
2 catalogued sites demonstrate container max-width in production.