<!DOCTYPE html> <html> <meta charset="utf-8"> <title>CSS Multi-column Layout Test: Test fragmentation for a nested multi-column container with column-span</title> <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com"> <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-007-ref.html"> <meta name="assert" content="This test verifies a nested multi-column container with non-auto height and column-span child can be fragmented."> <style> .outer { column-count: 2; column-rule: 6px solid black; width: 400px; height: 110px; } .inner { column-count: 2; column-rule: 3px solid green; height: 270px; background-color: lightgreen; border: 10px solid purple; } .block1 { background-color: yellow; height: 200px; } .spanner { column-span: all; height: 50px; background-color: lightblue; } .block2 { background-color: yellow; height: 240px; } </style> <article class="outer"> <article class="inner"> <div class="block1">block1</div> <div class="spanner">spanner</div> <div class="block2">block2</div> </article> </article> </html>