Absolute Parent, Relative Child

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css">
    <script src="script.js"></script>
  </head>

  <body>
    <div class="parent">
      <div class="on-top">This is your div</div>
    </div>
  </body>

</html>

// Code goes here

/* Styles go here */
.parent {
  background-image:url("http://www.catfriendlysofa.com/wp-content/uploads/2015/01/ZVtXtcz.gif");
  min-width:500px;
  min-height:250px;
  position:absolute;
}

.on-top {
  width:130px;
  height:130px;
  background-color:red;
  color:white;
  position:relative;
  top:70px;
  left:30px;
}