圆角
<!DOCTYPE html><html>
<head>
<style>
div{width: 100px;height: 100px;background: #101010;}
.one{background: #8AC007;border-top-right-radius: 100px;}
.two{background: #8AC007;border-radius:100px;}
</style>
</head>
<body>
<div><div class="one"></div></div>
<div><div class="two"></div></div>
</body>
</html>
