<style type="text/css">
#overlay_message_inner {
    position: fixed;
    top: 35%;
    left: 10%;
    width: 80%;
    text-align: center;
    border-radius: 0.2em;
    background: #FFFFFF;
    font-size: 2.75em;
    padding: 0.2em 0;
}
</style>

<span id="overlay_transparent"></span>

<div id="overlay_message_inner">
    {{ message }}
</div>
