body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.form-container {
    background-color: #fff;
    padding: 30px;
    margin-top: 30px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    text-align: center;
    position: relative;
}

.form-container input[type="submit"],
.form-container button {
    background-color: #28a745;
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
}

.form-container input[type="submit"]:hover,
.form-container button:hover {
    background-color: #218838;
}

.form-container .hidden {
    display: none;
}

@keyframes blink-animation {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

/* CSS untuk gambar */
.form-container img {
    width: 100%;
    height: auto;
    /* Menjaga aspek rasio gambar */
    display: block;
    /* Menghilangkan ruang ekstra di bawah gambar */
    margin: 0;
    /* Menghapus margin default */
}

/* CSS untuk marquee */
h3 marquee {
    display: block;
    font-size: 16px;
    color: #333;
}