body {
    background-image: url('images/main.png');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    height: 100vh;
    flex-direction: column;
}

button {
    padding: 10px 20px;
    font-size: 40px;
    cursor: pointer;
    background-color: #21db28;
    color: white;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.button-container {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-top: 350px;
}

button:hover {
    background-color: #45a049;
}