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| 1 <!DOCTYPE html> |
| 2 <title>Test of animation-direction</title> |
| 3 <script src="../resources/testharness.js"></script> |
| 4 <script src="../resources/testharnessreport.js"></script> |
| 5 <style> |
| 6 #target { |
| 7 animation-direction: alternate; |
| 8 animation-duration: 2s; |
| 9 animation-iteration-count: 2; |
| 10 animation-name: move; |
| 11 animation-play-state: paused; |
| 12 animation-timing-function: linear; |
| 13 animation-fill-mode: both; |
| 14 |
| 15 |
| 16 background-color: red; |
| 17 height: 100px; |
| 18 left: 500px; |
| 19 position: absolute; |
| 20 width: 100px; |
| 21 } |
| 22 @keyframes move { |
| 23 from { left: 0px; } |
| 24 to { left: 400px; } |
| 25 } |
| 26 |
| 27 </style> |
| 28 <div id="target"></div> |
| 29 <script> |
| 30 'use strict'; |
| 31 test(function() { |
| 32 target.style.animationDelay = '1s'; |
| 33 assert_equals(getComputedStyle(target).left, '0px'); |
| 34 |
| 35 target.style.animationDelay = '-0.5s'; |
| 36 assert_equals(getComputedStyle(target).left, '100px'); |
| 37 |
| 38 target.style.animationDelay = '-1.5s'; |
| 39 assert_equals(getComputedStyle(target).left, '300px'); |
| 40 |
| 41 target.style.animationDelay = '-2.5s'; |
| 42 assert_equals(getComputedStyle(target).left, '300px'); |
| 43 |
| 44 target.style.animationDelay = '-3.5s'; |
| 45 assert_equals(getComputedStyle(target).left, '100px'); |
| 46 |
| 47 target.style.animationDelay = '-5s'; |
| 48 assert_equals(getComputedStyle(target).left, '0px'); |
| 49 }, "animation-direction alternate plays forwards, then backwards"); |
| 50 </script> |
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