CSS Properties: How to set the border top-left radius is animatable?

Last update on August 19 2022 21:51:55 (UTC/GMT +8 hours)

Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
<title>How to set the border top-left radius is animatable</title>
<style type="text/css">
#mydiv { 
width: 100px;
height: 150px;
border: 3px solid #FF0000;
padding: 10px 40px;
background: #00CCCC;
-webkit-animation: mymove 5s infinite;
animation: mymove 5s infinite;
}
@keyframes mymove {
50% {border-top-left-radius: 50px;}
}  
</style> 
</head>
<body>
<h1>w3resource Tutorial</h1>
<div id="mydiv">The border-radius property allow to add rounded corners is animatable</div>
</body>
</html>

Live Demo:

See the Pen border-top-left-radius-animatable-answer by w3resource (@w3resource) on CodePen.

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