@media only screen and (max-width: 600px) {
    /* Atur lebar wrapper agar tidak terlalu lebar */
    .wrapper {
        width: 80%;
        margin: 0 auto;
    }

    /* Atur gaya teks agar lebih mudah dibaca */
    h1, h2 {
        font-size: 24px;
    }

    /* Atur tombol agar lebih mudah di-tap */
    .btn {
        padding: 10px 20px;
        font-size: 16px;
    }
}


body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}
.wrapper {
    width: 85%;
    padding: 20px;
    margin: 0 auto;
    background: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    margin-top: 50px;
}
header {
    background: #333;
    color: #fff;
    padding: 10px 0;
}
nav ul {
    list-style: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin: 0 10px;
}
nav ul li a {
    color: #fff;
    text-decoration: none;
}
footer {
    text-align: center;
    padding: 10px;
    background: #333;
    color: #fff;
    position: fixed;
    bottom: 0;
    width: 100%;
}