<html>
<head>
<style>
input:enabled
{
background:#ffff00;
}
input:disabled
{
background:#dddddd;
}
</style>
</head>
<body>
<form action="">
First name: <input type="text" value="Mickey"><br>
Last name: <input type="text" value="Mouse"><br>
Country: <input type="text" disabled value="Disneyland"><br>
Password: <input type="password" name="password">
<input type="radio" value="male" name="gender"> Male<br>
<input type="radio" value="female" name="gender"> Female<br>
<input type="checkbox" value="Bike"> I have a bike<br>
<input type="checkbox" value="Car"> I have a car
</form>
<p><b>Note:</b> This example works properly only in Opera!</p>
</body>
</html>