diff --git a/test/css/edge/namespacing-3.css b/test/css/edge/namespacing-3.css
index 3b6d47661..6110d1377 100644
--- a/test/css/edge/namespacing-3.css
+++ b/test/css/edge/namespacing-3.css
@@ -1,6 +1,8 @@
-.toolbar {
-  width: 400px;
-  height: 200px;
-  background: red;
-  color: white;
+@media (min-width: 320px) {
+  .toolbar {
+    width: 400px;
+    height: 200px;
+    background: red;
+    color: white;
+  }
 }
diff --git a/test/less/edge/namespacing-3.less b/test/less/edge/namespacing-3.less
index c85a12cf6..4fa963fc3 100644
--- a/test/less/edge/namespacing-3.less
+++ b/test/less/edge/namespacing-3.less
@@ -12,9 +12,17 @@
   }
 }
 
-.toolbar {
-  width: @map[@width];
-  height: #ns.mixin[@height];
-  background: @map[@colors][toolbar-background];
-  color: @map[@colors][toolbar-foreground];
+@breakpoints: {
+  mobile: 320px;
+  tablet: 768px;
+  desktop: 1024px;
+};
+
+@media (min-width: @breakpoints[mobile]) {
+  .toolbar {
+    width: @map[@width];
+    height: #ns.mixin[@height];
+    background: @map[@colors][toolbar-background];
+    color: @map[@colors][toolbar-foreground];
+  }
 }
\ No newline at end of file