body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.close-button-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}

.close-button {
    margin-left:45%;
    display: none;
    padding: 10px 20px;
    background: linear-gradient(45deg, #4CAF50, #66BB6A);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.close-button:hover {
    background: linear-gradient(45deg, #66BB6A, #4CAF50);
}


.container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

input {
    padding: 10px;
    width: 80%;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

.reward {
    display: inline-block;
    margin: 10px;
    cursor: pointer;
}

.reward img {
    max-width: 100px;
    display: block;
    margin: 0 auto;
}

.reward p {
    margin-top: 10px;
}