OptionalbackgroundCSS background for the viewer area.
OptionalgapGap between pages in spread mode, in pixels.
OptionalgutterGutter style: false disables the gutter, a string selects a
registered binding style, and an object overrides the subtle
built-in style.
Show one page or a facing-page spread.
OptionalpageHow pages fill the available space. Defaults to "contain".
Media query that activates this layout.
OptionalspreadOptionalfirstPageSide?: "right" | "left"Most books begin with page 1 on the right.
Responsive behavior for a viewer.
The first layout whose
querymatches the viewport is used.