body {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff9966, #ff5e62);
    font-family: Arial, sans-serif;
    overflow: hidden; /* prevent scrollbars */
}

#funBtn {
    padding: 15px 30px;
    font-size: 18px;
    border: none;
    background: #fff;
    color: #ff5e62;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.1s ease;
    position: absolute;
}