.bm-block-share {
    display: flex;
    align-items: center;
}

.bm-block-share a {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    width: 40px;
    background-color: gray;
    color: white;
    text-decoration: none;
}

.bm-block-share a:not(:last-child) {
    margin-right: 15px;
}