1 files changed, 132 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-grid/masonry/tentative/alignment/masonry-justify-content-004.html b/testing/web-platform/tests/css/css-grid/masonry/tentative/alignment/masonry-justify-content-004.html
new file mode 100644
index 0000000000..e309ef8870
--- /dev/null
+++ b/testing/web-platform/tests/css/css-grid/masonry/tentative/alignment/masonry-justify-content-004.html
@@ -0,0 +1,132 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: Masonry layout with `justify-content` in masonry axis (vertical writing mode)</title>
+  <meta name="assert"
+        content="Test passes if justify-content shifts content
+                 in the masonry axis of a vertical writing-mode masonry grid container.">
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#alignment">
+  <link rel="match" href="masonry-justify-content-004-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:15px/1 monospace; padding:0; margin:0;
+}
+
+grid {
+  display: inline-grid;
+  gap: 1px 2px;
+  grid-template-columns: masonry;
+  grid-template-rows: repeat(4,20px);
+  background: content-box silver;
+  border: 1px solid;
+  padding: 0 3px 2px 0;
+  width: 100px;
+  height: 120px;
+  align-content: center;
+  writing-mode: vertical-rl;
+}
+
+item {
+  background-color: #444;
+  color: #fff;
+}
+
+.tall { padding: 11px 3px 13px 7px; }
+</style>
+</head>
+<body>
+
+<grid style="justify-content:start">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:start">
+  <item>1</item>
+  <item class="tall">2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:end">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:end">
+  <item>1</item>
+  <item class="tall">2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:center">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:center">
+  <item>1</item>
+  <item class="tall">2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:stretch">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:space-between">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:space-around">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>
+
+<grid style="justify-content:space-evenly">
+  <item class="tall">1</item>
+  <item>2</item>
+  <item>3</item>
+  <item>4</item>
+  <item>5</item>
+  <item>6</item>
+</grid>