diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index a364288d89e5..44fc36a7874c 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -68193,6 +68193,18 @@
{}
]
],
+ "css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html": [
+ [
+ "/css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html",
+ [
+ [
+ "/css/reference/ref-filled-green-200px-square.html",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
"css/CSS2/normal-flow/max-height-001.xht": [
[
"/css/CSS2/normal-flow/max-height-001.xht",
@@ -448166,6 +448178,10 @@
"a19a4cc8d7c500e01a0b591b16c13cd9a18773db",
"reftest"
],
+ "css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html": [
+ "33e6e180ed6e9896b7aeb3fcd9060bedb162291c",
+ "reftest"
+ ],
"css/CSS2/normal-flow/max-height-001.xht": [
"34a501cb70b591b6998234f3366361c33a064a18",
"reftest"
diff --git a/testing/web-platform/tests/css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html b/testing/web-platform/tests/css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html
new file mode 100644
index 000000000000..471a4c7f5a4c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/normal-flow/margin-collapse-through-zero-height-block.html
@@ -0,0 +1,12 @@
+
+Collapse bottom margin from previous sibling through zero height block to next sibling
+
+
+
+Test passes if there is a filled green square and no red.
+