title: Custom Popup Boxes in HTML, JavaScript, and CSS
body: <p>I am trying to create a popup box similar to this: <a href="http://www.bijusubhash.com/wp-content/uploads/2011/04/Simple-Popup-Box-using-CSS-and-jQuery.jpg" rel="nofollow">Click Here</a></p>
  
  <p>I only want to use JavaScript. I realize I am probably making this task harder by making this requirement, but I am still trying to learn JavaScript, so I don't really want to confuse myself with JQuery. I basically want to make a prompt or alert style popup box. Thanks in advance for the help!</p>