.fix-bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #fff;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.2);
    z-index: 9999;
}

.fix-bottom a.button {
    width: 50px;
    height: 50px;
    border-radius: 100%;
    padding: 0;
    line-height: 50px;
    font-size: 10px;
}