<!DOCTYPE html>
<html>
<head>
  <title>background-position: right 25% bottom 75%</title>
  <style type="text/css">
#outer
{
  border: 1px solid black;
  width: 128px;
  height: 128px;
}
#inner1
{
  width: 128px;
  height: 128px;
  background-position-x: right 25%;
  background-position-y: bottom 75%;
  background-image: url(aqua-32x32.png);
  background-repeat: no-repeat;
}
#inner2
{
  width: 128px;
  height: 128px;
  background-position-x: right 25%;
  background-position-y: bottom 75%;
  background-image: url(aqua-32x32.png);
  background-repeat: no-repeat;
}
#inner3
{
  width: 128px;
  height: 128px;
  background-position-x: right 24px;
  background-position-y: bottom 72px;
  background-image: url(aqua-32x32.png);
  background-repeat: no-repeat;
}
#inner4
{
  width: 128px;
  height: 128px;
  background-position-x: right 24px;
  background-position-y: bottom 72px;
  background-image: url(aqua-32x32.png);
  background-repeat: no-repeat;
}
  </style>
</head>
<body>
<div id="outer"><div id="inner1"></div></div>
<div id="outer"><div id="inner2"></div></div>
<div id="outer"><div id="inner3"></div></div>
<div id="outer"><div id="inner4"></div></div>
</body>
</html>