Html Tutorial

disabled

<!DOCTYPE html>
<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script>
    $(document).ready(function(){
      $(":disabled").css("background-color", "red");
    });
    </script>
</head>
<body>
    <form action="">
    Name: <input type="text" name="user"><br>
    ID:<input type="text" name="id" disabled="disabled">
    Age:
    <select disabled="disabled">
      <option>20-30</option>
      <option>30-50</option>
      <option>50+</option>
    </select>
    <input type="submit">
    </form>
</body>
</html>