<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Multi-column Test: Test an unbreakble block element in a zero height multi-column container</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1754598">
<link rel="stylesheet" href="/fonts/ahem.css">
<link rel="match" href="multicol-zero-height-002-ref.html">
<meta name="assert" content="This test verifies that the unbreakable block element with definite block-size doesn't ask for an extra continuation in the second column.">

<style>
.multicol {
  column-width: 100px;
  inline-size: 300px;
  block-size: 0;
}

.child {
  font: 100px/1 Ahem;
  color: green;
  inline-size: 100px;
  block-size: 100px; /* The define block-size is required to reproduce the bug.*/
  outline: 3px solid green;
}
</style>

<p>There shouldn't be a green strip in the second column.</p>
<div class="multicol">
  <div class="child">X</div>
</div>
