.backtotop {
    display: inline-block;
    background-color: $primaryColor;
    width: 50px;
    height: 50px;
    text-align: center;
    border-radius: 4px;
    position: fixed;
    bottom: 30px;
    right: 30px;
    opacity: 0;
    visibility: hidden;
    z-index: 9999999999
}

.backtotop::after {
    content: "";
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff
}

.backtotop:hover {
    cursor: pointer;
    background-color: $secondColor;
}

.backtotop:active {
    background-color: $secondColor;
}

.backtotop.show {
    opacity: 1;
    visibility: visible
}