message-pusher/views/partials/message.ejs

<% if(message && message.length) { %>
    <article id='message' class="message <%= isErrorMessage ? 'is-danger' : 'is-info'%>">
        <div class="message-body">
            <%= message %>
        </div>
        <script>
            setTimeout(function (){
              document.getElementById('message').style.display='none';
            }, 5000)
        </script>
    </article>
<% }%>