<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Test a multi-column container with percentage height children</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/#column-span">
<link rel="help" href="https://drafts.csswg.org/css-break/#breaking-rules">
<link rel="match" href="multicol-span-all-children-height-003-ref.html">
<meta name="assert" content="This test checks the percentage height children under multicol container compute the percentage relative to the entire multicol, not just the part after the column-span.">
<style>
article {
column-count: 2;
width: 400px;
height: 200px;
background-color: lightgreen;
border: 5px solid purple;
}
div.block1 {
background-color: yellow;
/* This overflows the column container, so one extra column is created. */
height: 300%;
}
div.spanner {
column-span: all;
height: 25%;
background-color: lightblue;
}
div.block2 {
background-color: yellow;
/* No height left for this block. According to the breaking rules, the
column container creates 1px column boxes for it. */
height: 100%;
}
</style>
<article>
<div class="block1">block1</div>
<div class="spanner">spanner</div>
<div class="block2">block2</div>
</article>
</html>