.fab-button {
    display: inline-block;
    background-color: #48509E;
    text-align: center;
    position: fixed;
    z-index: 1000;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    transition: background-color .3s, opacity .5s, visibility .5s;
}

.fab-button::after {
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff;
    font-family: FontAwesome;
}

.fab-button:hover {
    cursor: pointer;
    background-color: #333;
}

.fab-button:active {
    background-color: #555;
}

.scroll-up {
    opacity: 0;
    visibility: hidden;
    bottom: 95px;
    right: 25px;
}

.scroll-up::after {
    content: "\f077";
}

.scroll-up.show {
    opacity: 1;
    visibility: visible;
}

.telegram-button {
    bottom: 95px;
    padding-top: 5px;
    left: 21px;
}

.telegram-button::after {
    content: "\f1d8";
}