chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/interactive/flexbox_interactive_break-natural.html

<!DOCTYPE html>
<title>flexbox | natural breaks</title>
<link rel="author" href="http://opera.com" title="Opera Software">
<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#pagination">
<meta name="flags" content="interact paged">
<style>
* {
	widows: 1;
	orphans: 1;
	margin: 0;
	height: 100%;
}
body {
	display: flex;
	flex-direction: column;
}
div {
	height: 75%;
	flex: 0 0  auto;
}
@media print {
	div {
		break-inside: avoid;
	}
	div+div {
		border-top: 1em solid red;
	}
}
</style>

<div>Enter print preview. You should not see red or the word fail on the
	first page.</div>

<div>FAIL</div>