body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
h1 {
    font-size: 2.5em;
    margin-bottom: 0.5em;
}
button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 2em;
    cursor: pointer;
    margin: 0 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
.button-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: center;
}