prova.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
    body {
    font-family: 'Arial';
    color: black;
    font-size: 0.9em;
    }

    section {
    max-width: 450px;
    }

    details {
    background: green;
    color: white;
    padding: 15px;
    margin-bottom: 2px;
    border-radius: 25px;
    }

    summary {
    cursor: pointer;
    font-weight: 900;
    font-size: 1.2em;
    }
    </style>
</head>
<body>
<section>


</section>
</body>
</html>