Width per Page?

Hi there,

Are you only looking to change the width for the content part or everything including the header?

Let me know :)

Only for the Content Part.

In that case you can use CSS like this:

body.page-id-xx .site.grid-container {
    max-width: 900px;
}

and replace xx with the actual page ID.

Let me know :)

Great, this works. Thanks!

Would be nice to see this in the Designer in future.

No problem :)

There is a plan to add this to the Elements module.