diff --git a/client/less/challenge.less b/client/less/challenge.less
index 308ad10e3c..493bfc6e7e 100644
--- a/client/less/challenge.less
+++ b/client/less/challenge.less
@@ -146,6 +146,10 @@
     border-color: #515151;
     color: #ABABAB
   }
+  .challenge-instructions dfn {
+    background-color: #242424;
+    color: #02a902;
+  }
   .CodeMirror {
     background-color:#242424;
     color:#ABABAB;
@@ -223,4 +227,4 @@ iframe.iphone {
 // YouTube embed
 .embed-responsive-item {
   max-width: 100%;
-}
\ No newline at end of file
+}