html5-增强的表单

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>增强的表单</title>
</head>
<body>
<form action="http://localhost" target="_blank" id="kc" novalidate="novalidate">
   <input type="text" name="key">
   <input type="email" name="email" >
   <input type="submit">
</form>
<br>
<input type="text" name="user" form="kc">
</body>
</html>