#scrollUpBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    background-color: white;
    color: #cfdff0;
    border: none;
    padding: 6px 12px;
    border-radius: 25%;
    cursor: pointer;
    font-size: 20px;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.4s ease;
}