Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
<!DOCTYPE HTML>
<html>
<style>
body {
background: #2a4;
}
@keyframes HoldOpacity {
from, to {
opacity: 0.6;
}
}
div {
width: 200px; height: 200px;
background: #c37;
animation: 10s HoldOpacity infinite;
}
</style>
<div></div>