.wacm-main.announcement-notice-wrapper {
    position: fixed !important;
    width: 100%;
    z-index: 1;
    top: 0;
}

div#primary {
    background: white;
    z-index: 2;
    position: relative;
}

span.close-announcement-notice {
    position: absolute;
    right: 1rem;
    top: 1rem;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}