diff --git a/tests.js b/tests.js
index f85ce47..2f98245 100644
--- a/tests.js
+++ b/tests.js
@@ -101,6 +101,7 @@ import cssVariables1 from './tests/css-variables-1.js';
 import cssVariables2 from './tests/css-variables-2.js';
 import cssViewTransitions1 from './tests/css-view-transitions-1.js';
 import cssViewTransitions2 from './tests/css-view-transitions-2.js';
+import cssViewport1 from './tests/css-viewport-1.js';
 import cssWillChange1 from './tests/css-will-change-1.js';
 import cssWritingModes3 from './tests/css-writing-modes-3.js';
 import cssWritingModes4 from './tests/css-writing-modes-4.js';
@@ -264,6 +265,7 @@ export default {
 	'css-variables-2': cssVariables2,
 	'css-view-transitions-1': cssViewTransitions1,
 	'css-view-transitions-2': cssViewTransitions2,
+	'css-viewport-1': cssViewport1,
 	'css-will-change-1': cssWillChange1,
 	'css-writing-modes-3': cssWritingModes3,
 	'css-writing-modes-4': cssWritingModes4,
diff --git a/tests/css-viewport-1.js b/tests/css-viewport-1.js
new file mode 100644
index 0000000..30471fc
--- /dev/null
+++ b/tests/css-viewport-1.js
@@ -0,0 +1,19 @@
+export default {
+	title: 'CSS Viewport Module Level 1',
+	links: {
+		tr: 'css-viewport-1',
+		dev: 'css-viewport',
+	},
+	status: {
+		stability: 'experimental',
+	},
+	properties: {
+		'zoom': {
+			links: {
+				tr: '#zoom-property',
+				dev: '#zoom-property',
+			},
+			tests: ['0', '1', '1.5', '110%'],
+		},
+	},
+};