abstract：<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title> border </title> <style> /*border:1px solid red*/
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title> border </title>
<style> /*border:1px solid red*/
div{ width:200px;
height:200px;
border-width:10px 20px 30px;
border-color:red blue black ;
border-style:solid;
/*border-radius:50%*/
border-radius:40%;
border-top-left-radius:40px;
border-bottom-left-radius:60px;
border-bottom-right-radius:80px}
ul{list-style:square url(baidudian.jpg)}
li{width:100px;height:40px;border:1px solid red}
}
</style>
</head>
<ul type=>
<li>列表项1</li>
<li>列表项2</li>
<li>列表项2</li>
</ul>
<body>
<div>
</div>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-03-08 14:27:02
Teacher's summary：border-radius:40%; 圆角推荐使用百分多, 尽可能不要用绝对值