.btn{
    height: 40px;
    width: 40px;
    background-color:#008374;
    display: flex;
    border-radius: 50%;
    justify-content: center;
    align-items: center;
    position: fixed;
    right: 20px;
    bottom: 20px;
    cursor: pointer;
}

/* .bi-arrow-up{
    width: 40em;
    color:black ;
} */