File: stacking-context-transform-win-in-delay-on-main-thread.html

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<!DOCTYPE html>
<title>
Transform animation winning over another transform animation in delay phase
on the main-thread creates a stacking context
</title>
<style>
span {
  height: 100px;
  width: 100px;
  position: fixed;
  background: green;
  top: 50px;
}
@keyframes TransformNone {
  from, to { transform: none; }
}
@keyframes Transform100px {
  from, to { transform: translateX(100px); }
}
// For preventing running on the compositor.
@keyframes Width {
  from, to { width: 100px; }
}
#test {
  width: 100px; height: 100px;
  background: blue;
  animation: Transform100px 100s 100s, TransformNone 100s, Width 100s;
}
</style>
<span></span>
<div id="test"></div>