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