diff --git a/tests/playgrounds/iframe.html b/tests/playgrounds/iframe.html
index 9c57fbf00..befffbaaf 100644
--- a/tests/playgrounds/iframe.html
+++ b/tests/playgrounds/iframe.html
@@ -14,11 +14,11 @@
border: 0;
margin: 2px;
padding: 0;
- width: %100;
+ width: 100%;
}
#playground-iframe {
border: 0;
- width: %100;
+ width: 100%;
}