#price-change {
    background: #ff0;
    color: #000;
    border: none;
    cursor: pointer;
    width: 11.5rem;
    height: 2.5rem;
    opacity: 0;
    visibility: hidden;
    position: fixed;
    bottom: 1rem;
    right: 4rem;
    transition: all 0.2s cubic-bezier(0.7, 0, 0.3, 1);
    font-size: 2rem;
    outline: none;
    z-index: 2;
}
#price-change.price-change-visible {
    opacity: 1;
    visibility: visible;
}
#price-change.price-change-right {
    right:1rem;
}