#demoColorSwap {
    position: fixed;
    background-image: linear-gradient(135degdeg, rgba(231,232,232,1) 15%, rgba(195,195,195,1) 100%);
    z-index: 1000;
    right: -90px;
    top: 150px;
    padding: 10px 10px;
    display: flex;
    flex-direction: column;
    border-radius: 15px 0 0 15px;
    transition: all 300ms ease-in;
}

#demoColorSwap:hover {
    right: -40px;
}