bmi_template

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>Home Page</h1>
    <form action="/" method="post">
        weight: <input type="text" name="weight">
        Height: <input type="text" name="height">
        <button type="submit">Calculate</button>
    </form>
    {% if bmihtml %}
        {{ bmihtml }}
    {% endif %}
</body>
</html>