4 Header/Navigation-I'm stuck


#1


When I click run,why it shows:
invalid 'instanceof' operand s.DeferredSignal
What's the problem?


</head>  
<body>
  <header class="container">
 
  </header>
</body>
</html>


#2

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.