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<!DOCTYPE html>
<title>flexbox | natural breaks</title>
<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>