.share-button {
    position: fixed;
    z-index: 9999;
    bottom: 20px;
    right: 20px;
}

.share-button__icon {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
}
.share-button__icon img {
    width: 100%;
}