abstract：<html> <head> <meta charset="utf-8"> <title>border边框练习</title> <style> .box{ width:300px; height:300px; border-top:1px solid red;
<html>
<head>
<meta charset="utf-8">
<title>border边框练习</title>
<style>
.box{
width:300px;
height:300px;
border-top:1px solid red;
border-right:1px dashed #ccc;
border-bottom:1px double #333;
border-left:1px dotted blue;
}
.box2{
margin:10px;
width:150px;
height:150px;
box-shadow:10px 20px 3px #ccc inset;
}
button{
border:none;
font-size:20px;
}
</style>
</head>
<body>
<div class="box"></div>
<div class="box2"></div>
<button class="btu">login</button>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-04-29 09:13:02
Teacher's summary：完成的不错，刚学习css，要仔细看它的作用，毕竟css是没有逻辑的。继续加油。