: In software like Word or Google Docs, you use "mirror margins" so the gutter stays on the inside edge of every page. 🛠️ The "Gutter" in Digital Design & Code

: Prevents text from being obscured or lost in the binding.

Beyond physical books, the term is used in digital layouts to manage "white space."

: Thicker books require deeper gutters (wider margins) because the bulk of the pages prevents the book from opening flat.

The gutter ensures that text doesn't disappear into the "fold" (the spine) of a bound document.

In publishing and design, the is the crucial extra space added to the inside margin of a layout to account for binding. 📖 The "Gutter" in Text & Publishing

Gutter highlights how-to - Technical Support - Sublime Forum