Not exact matches
Each XHTML and
SVG spine item which has the «pre-paginated» value set for its rendition: layout property must contain the
viewport (for XHTML) or viewBox (for
SVG) dimension expressions as defined below.
For both XHTML and
SVG Content Documents, the dimension (
viewport / viewbox) expressions define the CSS initial containing block (ICB) expressed in CSS Pixels [CSS].
When synthetic spreads are used in the context of XHTML and
SVG Content Documents, the dimensions given via
viewport / viewBox metadata represents the size of one page in the spread.
If only the [
SVG] viewBox attribute is present, the coordinate system it defines is mapped to the
Viewport, keeping the aspect ratio, thereby establishing the initial containing block (ICB) in pixels [CSS Snapshot].