Before roads are built and castles rise, the land already has a shape. Editor’s Note: This article was originally published on RandomThoughtsInTraffic.com and has been revised and expanded for StackNScroll as part of The CSS Codex series. The original article introduced normal flow as the browser’s default layout behavior, but this edition explores the concept through the broader lens of layout strategy, document structure, responsiveness, and long-term maintainability. New material examines how block and inline formatting contexts influence layout decisions, how containers shape available space, why developers often abandon normal flow too early, and how modern layout systems continue to depend upon it. As part of this week’s theme, Mastering…