.top{
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #006374;
    position: relative;
    position: fixed;
    bottom: 5%;
    right: 3%;
    z-index: 99;
    display: none;
    cursor: pointer;
}

.top i{
    position: absolute;
    color: #fff;
    font-size: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}