.footer-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: #fff;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -1px 4px rgba(0,0,0,.1);
    font-size: 12px;
}
.nav-item { text-align: center; color: #999; }
.nav-item.active { color: #1890ff; }
.nav-icon { font-size: 20px; margin-bottom: 2px; }

.footer-nav a {
    text-decoration: none;
    color: inherit;
}

.footer-nav .nav-item {
    flex: 1;
    text-align: center;
    padding: 6px 0;
}