trick10.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Input Validation</title>
    <link rel="stylesheet" href="trick10.css">
</head>
<body>
    <div class="inputs">
            <h1>css :invalid sudo class use for check condition applied in input tags </h1>
            <label for="id">only number</label>
            <input type="text" name="text" class="input" pattern="\d+" placeholder="Numbers only pattern">
            <label for="name"> only name</label>
            <input type="text" name="text" class="input" pattern="[a-zA-Z]+" placeholder="Letters only">
            <label for="text">only number and letter</label>
            <input type="text" name="text" class="input" pattern="^[a-zA-Z0-9]+$" placeholder="Letters and numbers">
        </div>

       
</body>
</html>