<!DOCTYPE html> <html class="reftest-wait reftest-no-flush" reftest-resolution="0.5"> <meta name="viewport" content="width=device-width,minimum-scale=0.5,initial-scale=1"> <!-- A test for a partial pre-rendered transform animation with <1.0 resolution. --> <style> html { scrollbar-width: none; } body { margin: 0px; padding: 0px; } @keyframes anim { /* The reftest window size is (800x1000) and it's scaled by 0.5 */ /* (= 1600x2000), which means the partial pre-render size is (2250x2250) so */ /* move to a position inside the pre-render area and away from the */ /* pre-render right edge, translateX(-650px), so that we can avoid blurry */ /* edges in comparison with the reference. */ to { transform: translateX(-400px); } } #target { width: 4000px; height: 4000px; position: absolute; transform: translateX(0px); } </style> <div id="target"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 4000 4000"> <rect fill="green" x="0" width="1600" height="4000"></rect> <rect fill="blue" x="1600" width="650" height="4000"></rect> <rect fill="red" x="2250" width="1750" height="4000"></rect> </svg> </div> <script> document.addEventListener("MozReftestInvalidate", () => { target.style.animation = "anim 100s 1s step-start"; target.addEventListener("animationstart", () => { // animtionstart event is fired just before requestAnimationFrame callbacks, // so we need to wait two rAF to make sure the initial animation value is // composited on the compositor. requestAnimationFrame(() => { requestAnimationFrame(() => { document.documentElement.classList.remove("reftest-wait"); }); }); }); }, { once: true }); </script> </html>