div[data-md-component=announce] {
    background-color: rgba(255,145,0,.1);
}
div[data-md-component=announce]>div#announce-msg{
    color: var(--md-admonition-fg-color);
    font-size: .8rem;
    text-align: center;
    margin: 15px;
}
div[data-md-component=announce]>div#announce-msg>a{
    color: var(--md-typeset-a-color);
    text-decoration: underline;
}