<Dialog contentHeight="100px" contentWidth="250px" xmlns="sap.m" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:core="sap.ui.core">
    <buttons>
        <Button id="closeBtn" text="Close"></Button>
    </buttons>
    <html:div style="color: #007cc0; font-size: 25px; padding-bottom: 15px; border-bottom: solid #cdcdcd 4px; font-family: Georgia, serif; ">What's New here?</html:div>
    <html:p style="color: #666; font-family: Georgia, serif;">Description of what's going on here...</html:p>
</Dialog>