fix beta warning

public/css/main.less

@@ -613,6 +613,11 @@ thead {
   color: #009900
 }
 
+.default-border-radius {
+  border-radius: 5px;
+}
+
+
 .testimonial-copy {
   font-size: 20px;
   text-align: center;

server/views/challengeMap/show.jade

@@ -3,6 +3,9 @@ block content
     script.
         var completedChallenges = !{JSON.stringify(completedChallengeList)};
         var challengeList = !{JSON.stringify(challengeList)};
+    .bg-danger.default-border-radius
+        p     
+            a(href='https://github.com/FreeCodeCamp/freecodecamp/wiki/beta' target='_blank') You're using our experimental beta site. None of your progress here will be saved. Please click this to learn more.
     .panel.panel-info
         .panel-heading.text-center
             h1 Challenge Map

server/views/home.jade

@@ -1,8 +1,8 @@
 extends layout
 block content
-    .bg-danger
-      a(href='https://github.com/FreeCodeCamp/freecodecamp/wiki/beta before continuing')
-        h3 Warning! You are on beta! Please read this link before continuing! https://github.com/freecodecamp/freecodecamp/wiki/beta
+    .bg-danger.default-border-radius
+      p     
+        a(href='https://github.com/FreeCodeCamp/freecodecamp/wiki/beta' target='_blank') You're using our experimental beta site. None of your progress here will be saved. Please click this to learn more.
     .jumbotron
         .text-center
             h1.hug-top Code with Us