index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>MaskMoney.js</title>
    <link rel="stylesheet" href="style.css">
    <script src="https://kit.fontawesome.com/5ae85dff3f.js" crossorigin="anonymous"></script>
</head>

<body>

    <div class="container">
        <div id="app">
            <label for="money">Money R$</label>
            <input type="text" id="money" onkeyup="maskMoney(event)" autofocus maxlength="11"
                placeholder="Ex: 1.249,90">
            <h2>BRL moneyMask <i class="fab fa-js"></i></h2>
            <small>By <a href="https://github.com/mrbrunelli/regexp-mask-money" target="_blank">Matheus R. Brunelli</a></small>
        </div>
    </div>

    <script src="maskMoney.js"></script>
</body>

</html>