/* tip box */
.tip-box {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
    z-index: 99999999;
}

.tip-box .tips-msg {
    display: inline-block;
    max-width: 90%;
    font-size: 12px;
    line-height: 16px;
    padding: 14px 30px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 8px;
}