hh-k8-ampe-mini/node_modules/vant-aliapp/dist/pages/sticky/index.acss

.page-container-classname {
    height: 200vh;
}

.van-button {
    margin-left: 16px;
}

.sticky-container {
    position: relative;
    z-index: -1;
    height: 150px;
    background-color: #fff;
}