Reflect width in Editor

From old feedback: Cwicly - Forum

I posted this in Feature Request, but it could almost be bug.

It would be nice if, when editing a post or page, the editor styles reflected the width of the main body inherited from the template. As it is now, it always goes to 100%. In a section if you have that section 100% wide your left aligned blocks are right up against the edge of the screen. However, since the template has a 90% width, when you view live, they have the margin.

Hello there,

Digging this up to specify that the Gutenberg editor width now reflects the max-width of the Section block that contains the Post Content block (if any).