border边框
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>border边框</title>
<style type="text/css">
.box{width: 200px; height: 200px; border: solid palevioletred; border-radius: 20px; box-shadow: powderblue 30px 30px 60px inset;}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
