Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
<!DOCTYPE html>
<title>
Opacity animation creates a stacking context even if the opacity property
is overridden by an !important rule
</title>
<style>
span {
height: 100px;
width: 100px;
position: fixed;
background: green;
top: 50px;
}
@keyframes Opaque {
from, to { opacity: 1 }
}
#test {
width: 100px; height: 100px;
background: blue;
animation: Opaque 100s;
opacity: 1 !important;
}
</style>
<span></span>
<div id="test"></div>