:disabled

css/style.css

:disabled{
background-color: #ACBEF6;
text-align: center;
}

:disabled{
 background-color: #ACBEF6;
 text-align: center;
}

index.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<link href="css/style.css" rel="stylesheet" />
</head>
<body>
<input type="text" />
<br />
<br />
<input type="text" />
<br />
<br />
<input type="text" disabled="disabled" value="Hello World!" />
<br />
<br />
<input type="text" disabled="disabled" value="Привет Мир!" />
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<link href="css/style.css" rel="stylesheet" />
</head>
<body>
<input type="text" />
<br />
<br />
<input type="text" />
<br />
<br />
<input type="text" disabled="disabled" value="Hello World!" />
<br />
<br />
<input type="text" disabled="disabled" value="Привет Мир!" />
</body>
</html>