chromium/third_party/blink/web_tests/external/wpt/css/css-backgrounds/animations/invalidation/background-color-animation-with-zero-alpha-ref.html

<!DOCTYPE html>
<style>
.box {
  width: 100px;
  height: 100px;
  background-color: rgba(100, 100, 0, 0);
}
</style>
<body>
  <div class='box'></div>
</body>