body {
    font-family: Arial, sans-serif;
    text-align: center;
}

.container {
    margin: 20px auto;
    width: 600px;
    height: 400px;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    padding: 20px;
    font-size: 20px;
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}

.checkbox {
    width: 20px;
    height: 20px;
    margin: 0 5px 0 20px;
}

button {
    padding: 10px 20px;
    font-size: 20px;
    border-radius: 5px;
    border: none;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}

button:hover {
    background-color: #3e8e41;
}