diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index 959ea0aef27d..5ab98efb7e42 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -106807,6 +106807,30 @@
{}
]
],
+ "css/css-contain/contain-layout-006.html": [
+ [
+ "/css/css-contain/contain-layout-006.html",
+ [
+ [
+ "/css/reference/ref-filled-green-100px-square.xht",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
+ "css/css-contain/contain-layout-007.html": [
+ [
+ "/css/css-contain/contain-layout-007.html",
+ [
+ [
+ "/css/reference/ref-filled-green-100px-square.xht",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
"css/css-contain/contain-layout-breaks-001.html": [
[
"/css/css-contain/contain-layout-breaks-001.html",
@@ -106927,6 +106951,30 @@
{}
]
],
+ "css/css-contain/contain-paint-009.html": [
+ [
+ "/css/css-contain/contain-paint-009.html",
+ [
+ [
+ "/css/reference/ref-filled-green-100px-square.xht",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
+ "css/css-contain/contain-paint-010.html": [
+ [
+ "/css/css-contain/contain-paint-010.html",
+ [
+ [
+ "/css/reference/ref-filled-green-100px-square.xht",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
"css/css-contain/contain-size-001.html": [
[
"/css/css-contain/contain-size-001.html",
@@ -496211,6 +496259,14 @@
"60b834ef7b5becf76f5cacd55b2b9c4774562637",
"reftest"
],
+ "css/css-contain/contain-layout-006.html": [
+ "89c68e7ce325295d6a36da91b6d4dd39580f7165",
+ "reftest"
+ ],
+ "css/css-contain/contain-layout-007.html": [
+ "799965dfb9989fc3a8226e80fa3c67cafb24374b",
+ "reftest"
+ ],
"css/css-contain/contain-layout-breaks-001.html": [
"09fcfd311126800c7ce63f27c3154ef31fc647bd",
"reftest"
@@ -496251,6 +496307,14 @@
"5540aaf33b5b841d95f84ead3459f634cf444299",
"reftest"
],
+ "css/css-contain/contain-paint-009.html": [
+ "b3a8ee7512f1f893b630453a8443edaed983f4c3",
+ "reftest"
+ ],
+ "css/css-contain/contain-paint-010.html": [
+ "e47f99a8fedb60f34ec7877686f478cbc002c6b4",
+ "reftest"
+ ],
"css/css-contain/contain-size-001.html": [
"089c4fd7352f91a85d5d8f6bf8c5f261c868cd37",
"reftest"
diff --git a/testing/web-platform/tests/css/css-contain/contain-layout-006.html b/testing/web-platform/tests/css/css-contain/contain-layout-006.html
new file mode 100644
index 000000000000..57dc518a65b3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-contain/contain-layout-006.html
@@ -0,0 +1,28 @@
+
+
+CSS Containment Test: Layout containment absolutely positioned descendants
+
+
+
+
+
+Test passes if there is a filled green square and no red.
+
diff --git a/testing/web-platform/tests/css/css-contain/contain-layout-007.html b/testing/web-platform/tests/css/css-contain/contain-layout-007.html
new file mode 100644
index 000000000000..39be5fe7fd06
--- /dev/null
+++ b/testing/web-platform/tests/css/css-contain/contain-layout-007.html
@@ -0,0 +1,28 @@
+
+
+CSS Containment Test: Layout containment fixed positioned descendants
+
+
+
+
+
+Test passes if there is a filled green square and no red.
+
diff --git a/testing/web-platform/tests/css/css-contain/contain-paint-009.html b/testing/web-platform/tests/css/css-contain/contain-paint-009.html
new file mode 100644
index 000000000000..34ca8d72b599
--- /dev/null
+++ b/testing/web-platform/tests/css/css-contain/contain-paint-009.html
@@ -0,0 +1,28 @@
+
+
+CSS Containment Test: Paint containment absolutely positioned descendants
+
+
+
+
+
+Test passes if there is a filled green square and no red.
+
diff --git a/testing/web-platform/tests/css/css-contain/contain-paint-010.html b/testing/web-platform/tests/css/css-contain/contain-paint-010.html
new file mode 100644
index 000000000000..a05ce58f8bc4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-contain/contain-paint-010.html
@@ -0,0 +1,28 @@
+
+
+CSS Containment Test: Paint containment fixed positioned descendants
+
+
+
+
+
+Test passes if there is a filled green square and no red.
+