<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Insert a block into a multicol details containing column-span:all</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<style>
#details {
column-count: 3;
column-rule: 6px solid;
width: 400px;
outline: 1px solid black;
}
h3 {
column-span: all;
outline: 1px solid blue;
}
</style>
<body>
<details open id="details">
<div>block1</div>
<summary>Summary</summary>
<h3>spanner</h3>
<div>block2</div>
</details>
</body>
</html>