If the 1st and 5th containers in your Webflow 101 course project are not expanding to full width, a few style or structural changes may be restricting them. Here's how to pinpoint and fix the issue.
max-width, padding, or margin settings that limit the width.max-width of 940px, 80%, or similar
display: block or flex, not inline or inline-block, which won’t expand full-width reliably.position settings (absolute, fixed) may also take the element out of normal flow, affecting width.
section, wrapper, or div might use a layout constraint you're unaware of.
Cmd + Z (Mac) / Ctrl + Z (Windows) to undo recent changes.Body, Section, Container, etc.) for changes that cascade down.
To fix the containers not expanding full width, inspect both the container and its parent elements for max-width, padding, or display constraints, and make sure no global class changes are unintentionally affecting only the 1st and 5th sections.