#toolbar {
    display: flex;
    overflow-x: auto; /* 添加水平滚动条 */
    white-space: nowrap; /* 防止内容换行 */
    position: absolute;
    bottom: 0.5rem;
    left:50%;
    transform: translateX(-50%);
    /*height: 40px;*/
    z-index: 1;
}

#toolbar > nav > div > a > img {
    width: 24px;
    height: 24px;
}

#toolbar > nav > div > a:hover {
    background-color: #c5e4ff;
}

#toolbar > nav > div > a.active {
    background-color: white;
    border: 2px solid #0385ef;
    box-shadow: #6e8192 0 0 5px;
}