Improve test display

Author: simonsmith

test/index.html

@@ -8,8 +8,8 @@
     background-color: #90C3D4;
   }
 
-  .Test-run > div {
-    background-color: #eee;
+  .FlexItem:nth-child(odd) {
+    background-color: #C68793;
   }
 
   .Test-fixedHeight {
@@ -20,6 +20,9 @@
     padding: 10px;
   }
 
+  .u-flex, .u-flexInline {
+    border: 1px solid #444;
+  }
 
   .Test {
     max-width: 980px;