khronosschoty
/
palemoon-dev


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142
							<!DOCTYPE html>
<html lang="en" class="reftest-wait">
<meta charset="utf-8">
<title>Changes to background-position should not cause things to repaint that don't intersect the background image.</title>

<style>

body {
  margin: 0;
}

#background {
  height: 512px;
  background-image: url(image_rgrg-256x256.png);
  background-repeat: no-repeat;
  background-position: 300px 50px;
}

#not-intersecting-background {
  box-sizing: border-box;
  width: 200px;
  height: 200px;
  margin: 50px;
  border: 1px solid lime;
}

</style>

<div id="background">
  <div id="not-intersecting-background" class="reftest-no-paint"></div>
</div>

<script>

function doTest() {
  document.querySelector("#background").style.backgroundPosition = "300px 100px";
  document.documentElement.removeAttribute("class");
}
document.addEventListener("MozReftestInvalidate", doTest);

</script>