LayoutTests/cssom/non-subpixel-scroll-top-left-values.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <title>This tests that Element.scroll* return integral values.</title>
 <style>
 div {
   position: fixed;
   width: 30px;
   height: 30px;
   border: 1px solid red;
   overflow: scroll;
 }
 </style>
 </head>
 <body>
 <script>
   if (window.testRunner)
     testRunner.dumpAsText();

   var container = document.body;
   for (i = 0; i < 15; ++i) {
     for (j = 0; j < 15; ++j) {
       var e = document.createElement("div");
       e.style.top = (30 * i) + "px";
       e.style.left = (30 * j) + "px";
       e.innerHTML = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ";
       container.appendChild(e);
     }
   }

   var result = "";
   var adjustment = 0;
   var divs = document.getElementsByTagName("div");
   for (i = 0; i < divs.length; ++i) {
     var element = divs[i];
     element.scrollTop = adjustment;
     element.scrollLeft = adjustment;
     result += "scrollTop:" + element.scrollTop.toFixed(2) + "scrollLeft:" + element.scrollLeft.toFixed(2) + "<br>";
     adjustment += 0.1;
     }
   document.body.innerHTML = result;
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>This tests that Element.scroll* return integral values.</title>
	<style>
	div {
	position: fixed;
	width: 30px;
	height: 30px;
	border: 1px solid red;
	overflow: scroll;
	}
	</style>
	</head>
	<body>
	<script>
	if (window.testRunner)
	testRunner.dumpAsText();

	var container = document.body;
	for (i = 0; i < 15; ++i) {
	for (j = 0; j < 15; ++j) {
	var e = document.createElement("div");
	e.style.top = (30 * i) + "px";
	e.style.left = (30 * j) + "px";
	e.innerHTML = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ";
	container.appendChild(e);
	}
	}

	var result = "";
	var adjustment = 0;
	var divs = document.getElementsByTagName("div");
	for (i = 0; i < divs.length; ++i) {
	var element = divs[i];
	element.scrollTop = adjustment;
	element.scrollLeft = adjustment;
	result += "scrollTop:" + element.scrollTop.toFixed(2) + "scrollLeft:" + element.scrollLeft.toFixed(2) + "<br>";
	adjustment += 0.1;
	}
	document.body.innerHTML = result;
	</script>
	</body>
	</html>