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Correction status：qualified
Teacher's comments：
Collection
Collection
第七次作业：
代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>作业</title>
<style type="text/css">
.aaa {
width: 300px;
height: 500px;
background-color: skyblue;
border: 1px solid #696969;
border-radius: 3%;
text-align: center;
}
.aaa h3 {
line-height: 500px;
}
.bbb {
width: 300px;
height: 500px;
background-color: skyblue;
border: 1px solid #696969;
border-radius: 3%;
text-align: center;
display:table-cell;
vertical-align: middle;
}
.ccc {
width: 300px;
height: 500px;
background-color: skyblue;
border: 1px solid #696969;
border-radius: 3%;
display:table-cell;
vertical-align: middle;
}
.ccc .child {
width: 100px;
height: 100px;
background-color: yellow;
margin: auto;
}
.box {
width: 300px;
height: 500px;
background-color: skyblue;
text-align: center;
display:table-cell;
vertical-align: bottom;
}
.box li {
list-style: none;
display: inline;
}
.box ul {
padding: 0px;
/*line-height: 500px;*/
}
</style>
</head>
<body>
<div class="aaa">
<h3>单行居中</h3>
</div>
<hr>
<div class="bbb">
<h3>多行文本居中</h3>
<a href="">多行文本居中</a>
</div>
<hr>
<div class="ccc">
<div class="child">
</div>
</div>
<hr>
<div class="box">
<ul>
<li><a href="">1</a></li>
<li><a href="">2</a></li>
<li><a href="">3</a></li>
<li><a href="">4</a></li>
</ul>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
手抄：
![D3Y0RG3K@`_)]I)GL7MTEU4.png](https://img.php.cn//upload/image/296/793/827/1521952444381337.png "1521952444381337.png")
