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<!DOCTYPE html>
<!-- This is a reference case for a "2-pages-per-sheet" scenario with nonzero
unwriteable margins. We expect the pages to have a 0.5x scale-down
factor. That 0.5 scale-factor comes from the fact that, when rendering the
testcase, we'll need to scale the page-width (8in) down enough to fit
side-by-side into half of the sheet's available width (with the sheet
having been rotated to landscape mode), with the sheet's unwritable margin
having already been subtracted out. The sheet's width (in landscape mode)
is 10in, and its unwriteable margin in that axis is 2in, so it's got 8in
of available width to hold two side-by-side pages, i.e. 4in per page.
Since the page width was 8in, that makes for a 0.5x scale. -->
<style>
html { height: 100%; }
body {
height: 100%;
margin: 0;
box-sizing: border-box;
/* The testcase (rendered at 2-pages-per-sheet) will have 2in of extra space
in the vertical axis, which will be distributed equally with 1in on the
top and the bottom of the page grid (separately from the sheet's
unwriteable margin). We mock that up as padding here: */
padding: 1in 0;
/* We lay out the body as a row-oriented flex container, with two
side-by-side children which correspond to the two pages per sheet: */
display: flex;
}
.swatch {
box-sizing: border-box;
/* This represents the 240px border in the testcase, scaled down 0.5x: */
border: 120px solid;
/* Share the width equally among the swatches. (The height will be
automatically set to the flex container's row height, via default
'align-self' behavior.) */
flex: 1;
/* This margin is meant to mock up the unwriteable margin for each page on
our sheet; it's exactly 0.5x the unwriteableMargin values specified for
the testcase in printpreview_helper.xhtml. */
margin: 0.4in 0.3in 0.6in 0.2in;
}
.swatch:nth-child(1) { border-color: cyan; }
.swatch:nth-child(2) { border-color: pink; }
</style>
<div class="swatch"></div>
<div class="swatch"></div>