lachang-wxapp/components/noNetworkPage/noNetworkPage.wxss

.noNetworkPage{
    position: fixed;
    z-index: 9999;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background: #FFFFFF;
}