index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Miller-Rabin Primality Test</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="wrapper">
        <h1>Miller-Rabin Primality Test</h1>
        <form>
            <label>Check if number is prime: </label>
            <input type="number" id="numberToCheck">
            <input type="submit" value="Check" onclick="displayResult(document.getElementById('numberToCheck').value, event);">
        </form>
        <div id="result"></div>
    </div>
    <script src="miller-rabin-primality-test.js"></script>
    <style>
        body {
            font-family: Arial, Helvetica, sans-serif;
        }

        h1 {
            font-size: 2.5em;
        }

        .wrapper {
            margin-top: 2%;
            text-align: center;
        }
        #result {
            margin-top: 5%;
            font-size: 2em;
        }
    </style>
</body>
</html>