Untitled

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
	<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="container">
	
</div>
</body>
</html>

css
*
{
	margin: 0;
	padding: 0;
}
html,body{
	height: 100%;
	width: 100%;
}
body{
	background-image: url("bg-img.jpeg");
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	display: flex;
	justify-content: center;
	align-items: center;
}
.container
{
	height: 200px;
	width: 200px;
	display: flex;
	border: 0px solid red;
	transition: all 1s ease-out 0s;
	background-color:black;
}
.container:hover{
border-radius:50%;
transition: all 1s ease-out 0s;
}
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