title: alert with background mask by jquery.?
body: <p>how is make a alert with background mask(mask is for full page)? (<strong>i don't want use of plugin</strong>)</p>
  
  <p><strong>Explanation</strong>: After click on a button or link, show an alert with the background mask.</p>
  
  <p>Like demo in here=> <a href="http://thrivingkings.com/apprise/" rel="nofollow">http://thrivingkings.com/apprise/</a></p>