diff --git a/css-flexbox-1/flex-margin-no-collapse.html b/css-flexbox-1/flex-margin-no-collapse.html
--- a/css-flexbox-1/flex-margin-no-collapse.html
+++ b/css-flexbox-1/flex-margin-no-collapse.html
@@ -17,16 +17,17 @@
width: 200px;
height: 300px;
}
.box {
width: 100px;
height: 100px;
background-color: green;
+ flex: none;
}
#box1 {
margin: 50px 0;
}
#box2 {
margin: 50px 0;
@@ -45,9 +46,9 @@
The test passes if there are two green boxes and no red.
-