.custom-calendly-btn {
    position: fixed;
    right: 0;
    bottom: 20px;
    z-index: 1050;
    transition: 0.4s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .25);
}

.custom-calendly-btn:hover {
    background: #fff;
    color: #6a1b1e;
}