1401801.html (563B)
1 <!DOCTYPE html> 2 <html class="reftest-wait"> 3 <style> 4 #test { 5 display: none; 6 width: 100px; 7 height: 100px; 8 } 9 </style> 10 <div id="test"></div> 11 <script> 12 test.animate({ backgroundColor: [ 'red', 'blue' ] }, 13 { duration: 1000, 14 iterations: Infinity }); 15 16 requestAnimationFrame(() => { 17 requestAnimationFrame(() => { 18 document.styleSheets[0].cssRules[0].style.setProperty('display', 'block'); 19 test.getBoundingClientRect(); 20 document.documentElement.classList.remove('reftest-wait'); 21 }); 22 }); 23 </script> 24 </html>