dynamic-grid-track-direction.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-grid/masonry/tentative/track-sizing/dynamic-grid-track-direction.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<title>Computed style honors the grid track direction when it changes</title>

<link rel="help" href="https://drafts.csswg.org/css-grid-3">

<link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<style>

.masonry {

    display: masonry;

    grid-template-columns: 100px 100px;

    grid-template-rows: 100px 100px 100px;

</style>

<div class="masonry"></div>

<script>

  test(function() {

    const container = document.querySelector('.masonry');

    const computedStyle = window.getComputedStyle(container);

    assert_equals(computedStyle.getPropertyValue('grid-template-columns'),

      "100px 100px");

    container.style.masonryDirection = 'row';

    const computedStyleAfter = window.getComputedStyle(container);

    assert_equals(computedStyleAfter.getPropertyValue('grid-template-rows'),

      "100px 100px 100px");

});

</script>

</html>