<style>

    .callout-region:after {
        content: "Due to system maintenance, we are unable to process registrations until July 1st";
        text-align: center;
        color: #fff;
        background: #D73F09;
        width: 100%;
        margin: -10px auto 20px auto;
        font-size: 28px;
        font-weight: bolder;
        display: block;
        padding: 10px 0px 10px 0px;
    }
</style>