summaryrefslogtreecommitdiffstats
path: root/layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html')
-rw-r--r--layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html45
1 files changed, 45 insertions, 0 deletions
diff --git a/layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html b/layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html
new file mode 100644
index 000000000..e14481afc
--- /dev/null
+++ b/layout/reftests/css-transitions/stacking-context-opacity-lose-to-animation.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>
+Opacity transition and animation overridden by !important rule creates a
+stacking context
+</title>
+<style>
+span {
+ height: 100px;
+ width: 100px;
+ position: fixed;
+ background: green;
+ top: 50px;
+}
+@keyframes Opacity0 {
+ from, to { opacity: 0; }
+}
+#test {
+ width: 100px; height: 100px;
+ background: blue;
+ opacity: 0 ! important;
+ transition: opacity 100s steps(1, start);
+ animation: Opacity0 100s;
+}
+</style>
+<span></span>
+<div id="test"></div>
+<script>
+window.addEventListener("load", () => {
+ var target = document.getElementById("test");
+ getComputedStyle(target).opacity;
+
+ // Change the opacity style to 100%.
+ target.style.setProperty("opacity", "1", "important");
+ // Important style is changed but there is a CSS animation,
+ // so transition won't be visible and the CSS animation is overridden by
+ // the !important rule. As a result opacity style here should be 100%
+ // specified by the important rule, but we should create a stacking
+ // context for it because there are animations.
+
+ requestAnimationFrame(() => {
+ document.documentElement.classList.remove("reftest-wait");
+ });
+});
+</script>