Desktop presentation

Above 768px the defaults change shape: bottom sheets dock to the right edge as a drawer-width column (640px max, 24px margin), and side sheets square off their lead edge. Below 768px, sheets stay full-bleed mobile style.

All of it is default styling, not behavior. --scrollsheet-max-inline and --scrollsheet-desktop-margin tune the column: set --scrollsheet-desktop-margin: 0px with --scrollsheet-max-inline: none to restore full-bleed. --scrollsheet-radius reclaims the rounded edge on desktop side sheets.

One more lever, all viewports: --scrollsheet-travel: none on your content class switches the enter/exit travel off: the sheet appears and disappears in place, phase callbacks still firing. For sheets whose entrance something else carries: the gallery’s Lightbox sets it only when the browser can morph the thumbnail into the viewer with the View Transitions API, so the morph is the one entrance story.