.select {
    height: 40px;
    padding: 6px 12px;
    border-radius: 4px;
    background: #3498db;
    color: white;
    border: none;
    outline: none; /* 这会移除点击时围绕元素的轮廓 */


}

.select-content {
    padding-right: 5px;
    margin-right: 6px;
    background: #3498db;
    border-radius: 4px;
    cursor: pointer;
}