3 files changed, 14 insertions, 2 deletions
diff --git a/testing/web-platform/tests/css/css-contain/reference/contain-layout-baseline-005-ref.html b/testing/web-platform/tests/css/css-contain/reference/contain-layout-baseline-005-ref.html
index 360652c939..83340137ac 100644
--- a/testing/web-platform/tests/css/css-contain/reference/contain-layout-baseline-005-ref.html
+++ b/testing/web-platform/tests/css/css-contain/reference/contain-layout-baseline-005-ref.html
@@ -39,7 +39,6 @@ fieldset, details {
 <div class="wrapper">
   <canvas></canvas>
   <div class="inline-block">foo</div>
-  <button>foo</button>
   <select><option>foo</option></select>
   <select multiple style="height: 40px;"><option>foo</option></select>
   <textarea style="height: 40px;"></textarea>
diff --git a/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-001-ref.html b/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-001-ref.html
index da83204dce..c20efbbb39 100644
--- a/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-001-ref.html
+++ b/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-001-ref.html
@@ -7,7 +7,7 @@ div.fakeButton {
   display: inline-block;
   border: 5px solid green;
   padding: 0;
-  margin-bottom: 2px;
+  margin-bottom: -5px;
   color: transparent;
   width: 0;
   height: 0px;
diff --git a/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-002-ref.html b/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-002-ref.html
new file mode 100644
index 0000000000..85b98ee4a6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-contain/reference/contain-layout-button-002-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+button {
+  border: 5px solid green;
+  padding: 10px;
+  margin-bottom: 2px;
+  color: transparent;
+  width: 20px;
+  height: 20px;
+}
+</style>
+<p>This test passes if it has the same output as the reference.</p>
+<button></button> <button></button>