I have set max page with in the layout section to 1400px which has adjusted some content (mainly collections/rich text etc).
However when viewed full screen, the header auto sizes full screen, as do the image banners, so it seams the layout width has no affect on these. I assume these sections require some custom code to be added in?
To make the header and image banners respect the 1400px max width in the Dawn theme, you’ll need to apply custom CSS to override the default full-width settings for these sections.
Go to Online Store > Themes > Edit code.
In base.css (or your custom CSS file), add the following code:
.header-wrapper, .banner-section {
max-width: 1400px;
margin: 0 auto;
}
This will limit the width of the header and image banners, keeping them aligned with your max page width setting. Adjust as needed.
If you have other questions, I am willing to answer them more.