diff --git a/third_party/blink/web_tests/external/WPT_BASE_MANIFEST_6.json b/third_party/blink/web_tests/external/WPT_BASE_MANIFEST_6.json
index 3baefd8..4887d52 100644
--- a/third_party/blink/web_tests/external/WPT_BASE_MANIFEST_6.json
+++ b/third_party/blink/web_tests/external/WPT_BASE_MANIFEST_6.json
@@ -200542,6 +200542,24 @@
      {}
     ]
    ],
+   "css/css-align/parsing/row-gap-computed.html": [
+    [
+     "css/css-align/parsing/row-gap-computed.html",
+     {}
+    ]
+   ],
+   "css/css-align/parsing/row-gap-invalid.html": [
+    [
+     "css/css-align/parsing/row-gap-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-align/parsing/row-gap-valid.html": [
+    [
+     "css/css-align/parsing/row-gap-valid.html",
+     {}
+    ]
+   ],
    "css/css-align/self-alignment/parse-align-self-001.html": [
     [
      "css/css-align/self-alignment/parse-align-self-001.html",
@@ -344345,6 +344363,18 @@
    "36a8bd5026eab2870307c223028b499c02c92099",
    "testharness"
   ],
+  "css/css-align/parsing/row-gap-computed.html": [
+   "8108dcc63a1334bde0a8016fb88824a77949221d",
+   "testharness"
+  ],
+  "css/css-align/parsing/row-gap-invalid.html": [
+   "a51ab7425c488d2452e869f58d5165094934fd10",
+   "testharness"
+  ],
+  "css/css-align/parsing/row-gap-valid.html": [
+   "dacdd38254ddf1fac48d0530a0a2e5e650040a44",
+   "testharness"
+  ],
   "css/css-align/reference/baseline-of-scrollable-1-ref.html": [
    "422660aff6b6b486ce3288469b4769e1497b071e",
    "support"
diff --git a/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-computed.html b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-computed.html
new file mode 100644
index 0000000..8108dcc6
--- /dev/null
+++ b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-computed.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Box Alignment Level 3: getComputedStyle().rowGap</title>
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-row-gap">
+<meta name="assert" content="row-gap computed value is a specified keyword or a computed <length-percentage>.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+<style>
+  #target {
+    font-size: 40px;
+  }
+</style>
+</head>
+<body>
+<div id="target"></div>
+<script>
+test_computed_value("row-gap", "normal");
+
+test_computed_value("row-gap", "10px");
+test_computed_value("row-gap", "20%");
+test_computed_value("row-gap", "calc(20% + 10px)");
+
+test_computed_value("row-gap", "calc(-0.5em + 10px)", "0px");
+test_computed_value("row-gap", "calc(0.5em + 10px)", "30px");
+</script>
+</body>
+</html>
diff --git a/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-invalid.html b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-invalid.html
new file mode 100644
index 0000000..a51ab742
--- /dev/null
+++ b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-invalid.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Box Alignment Level 3: parsing row-gap with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-row-gap">
+<meta name="assert" content="row-gap supports only the grammar 'normal | <length-percentage>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("row-gap", "auto");
+test_invalid_value("row-gap", "-10px");
+
+test_invalid_value("row-gap", "10px 20%");
+test_invalid_value("row-gap", "normal 10px");
+</script>
+</body>
+</html>
diff --git a/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-valid.html b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-valid.html
new file mode 100644
index 0000000..dacdd38
--- /dev/null
+++ b/third_party/blink/web_tests/external/wpt/css/css-align/parsing/row-gap-valid.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Box Alignment Level 3: parsing row-gap with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-row-gap">
+<meta name="assert" content="row-gap supports the full grammar 'normal | <length-percentage>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("row-gap", "normal");
+
+test_valid_value("row-gap", "10px");
+test_valid_value("row-gap", "20%");
+test_valid_value("row-gap", "calc(20% + 10px)");
+test_valid_value("row-gap", "0", "0px");
+</script>
+</body>
+</html>