diff --git a/testing/web-platform/tests/quirks/line-height-in-list-item.tentative.html b/testing/web-platform/tests/quirks/line-height-in-list-item.tentative.html
new file mode 100644
index 0000000000000..d7c2ec9b5f1e6
--- /dev/null
+++ b/testing/web-platform/tests/quirks/line-height-in-list-item.tentative.html
@@ -0,0 +1,211 @@
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diff --git a/testing/web-platform/tests/quirks/reference/green-100px-square-no-red.html b/testing/web-platform/tests/quirks/reference/green-100px-square-no-red.html
new file mode 100644
index 0000000000000..5105bbab892b7
--- /dev/null
+++ b/testing/web-platform/tests/quirks/reference/green-100px-square-no-red.html
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