批改状态:合格
老师批语:
实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>0323作业</title>
<style type="text/css">
.box1 {
width: 200px;
height: 200px;
background-color: lightblue;
text-align: center;
}
.box1 a {
line-height: 200px;
}
.box2 {
width: 200px;
height: 200px;
background: red;
text-align: center;
display: table-cell;
vertical-align: middle;
}
.box3 {
width: 200px;
height: 200px;
background: yellow;
display: table-cell;
vertical-align: middle;
}
.box3 .box4{
width: 100px;
height: 100px;
background-color: blue;
margin:auto;
}
.box5 {
width: 200px;
height: 200px;
background-color: lightblue;
text-align: center;
display: table-cell;
vertical-align: bottom;
}
.box5 ul {
padding: 0px;
}
.box5 li {
list-style: none;
display: inline;
}
</style>
</head>
<body>
<!-- 单行文本居中
1.水平居中:在父元素样式里面设置text-align:center;
2.垂直居中:在子元素样式里面设置line-height等于父元素的高; -->
<div class="box1"><a href="">单行文本居中</a></div>
<!-- 多行文本居中-->
<!--1.水平居中:在父元素样式里面设置text-align:center;
2.垂直居中:在父元素里面设置display:table-cell;verticle-align:middle; -->
<div class="box2">
<a href="">多行文本居中</a><br>
<span>多行文本居中</span>
</div>
<!-- 块元素居中
1.水平居中:子元素设置为margin:auto;
2.垂直居中:父元素display:table-cell;verticle-align:middle; -->
<div class="box3">
<div class="box4"></div>
</div>
<!-- 不定宽块元素居中
1.水平居中:设置text-align:center;
2.垂直居中:设置ul的属性为line-height等于父元素height(不常用)
3.底部居中:设置为display:table-cell;verticle-align:bottom -->
<div class="box5">
<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>
<li><a href="">5</a></li>
</ul>
</div>
</body>
</html>
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