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Perform Animation on CSS opacity
To implement animation on opacity property with CSS, you can try to run the following code:
Example
<!DOCTYPE html>
<html>
<head>
<style>
#demo1 {
position: absolute;
top: 60px;
width: 300px;
height: 150px;
background-color: lightblue;
animation: myanim 4s infinite;
}
#demo2 {
position: absolute;
top: 90px;
left: 30px;
width: 300px;
height: 150px;
background-color: orange;
animation: myanim 3s infinite;
}
#demo3 {
position: absolute;
top: 120px;
left: 60px;
width: 350px;
height: 150px;
background-color: coral;
}
@keyframes myanim {
30% {
opacity: 0.4;
}
}
</style>
</head>
<body>
<p>Showing opacity</p>
<div id = "demo1"><h1>End div</h1></div>
<div id = "demo2"></div>
<div id = "demo3"><h1>Start div</h1></div>
</body>
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