<!DOCTYPE html>
<html>
<head>
<title>CSS Motion Path Referecne: url() to circle</title>
<style>
#target {
width: 50px;
height: 50px;
background-color: green;
transform: translate(125px, 125px) rotate(180deg);
border-radius: 50% 50% 0 0;
}
</style>
</head>
<body>
<div id="target"></div>
</body>
</html>