<!DOCTYPE html>
<html>
<head>
<title>This tests that border images sized and positioned properly on subpixels.</title>
<style>
  div {
    border-width:0px 0px 0px 0.5px;
    position: fixed;
    -webkit-border-image: -webkit-linear-gradient(black, black) 1 100%;
  }
</style>
</head>
<body>
<p id="container"></p>
<script>
  var container = document.getElementById("container");
  w=5; h=5;
  for (i = 0; i < 15; ++i) {
    b = 0;
    for (j = 0; j < 15; ++j) {
      var e = document.createElement("div");
      e.style.top = ((w + 1) * i) + "px";
      e.style.left = ((w + 1) * j) + "px";
      e.style.width = w + "px";
      e.style.height = h + "px";
      e.style.borderLeftWidth = b + "px";
      container.appendChild(e);
      w+=0.1;
      h+=0.1;
      b+=0.5;
    }
  }
</script>
</body>
</html>