.navtotop {
    width: 3rem;
    aspect-ratio: 1/1;
    border-radius: 100%;
    border: 1px solid rgb(112, 112, 112);
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    background-color: #fff;
    color: #000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: .8;
    scroll-behavior: smooth;
    transition: all .3s ease-in-out
}

.navtotop a {
    color: inherit;
    text-decoration: none
}