Edit in JSFiddle

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>fieldset</title>
  </head>
  <body>
    <fieldset>
      <legend>개인정보</legend>
      이름 :<br> <input type="text" name="myname"><br> 
      이메일 :<br> <input type="email" name="myemail"><br>
      전화번호 :<br> <input type="tel" name="mytel">
    </fieldset>
  </body>
</html>