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A brief discussion on horizontal centering of CSS processing
- 高洛峰Original
- 2017-03-02 15:44:051380browse
The following editor will bring you a brief discussion on the issue of horizontal centering of CSS processing. The editor thinks it is quite good, so I will share it with you now and give it as a reference for everyone. Come and have a look with the editor, I wish you all a happy game
1. Horizontal centering setting-inline elements
Set 1 text-align:center through the parent element ; , center the content of the parent element
2. Horizontal centering setting-fixed-width block element
The width width of the block element is a fixed value, by setting " The left and right margin" value is "auto" to achieve centering
Example:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定宽块状元素水平居中</title>
<style>
p{
width: 200px;/*固定的宽度*/
margin: 20px auto;/*左右margin设置为auto*/
border: 1px solid red;
}
</style>
</head>
<body>
<p>我是定宽块状元素，我要水平居中显示。</p>
</body>
</html>
3. Horizontal centering setting - variable width block element
Method 1. Add table tag
Example:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>不定宽块状元素水平居中</title>
<style>
table{
margin:0 auto;
}
/*下面是任务区代码*/
.wrap{
background:#ccc;
}
</style>
</head>
<body>
<table>
<tbody>
<tr><td>
<p class="wrap">
我要水平居中
</p>
</td></tr>
</tbody>
</table>
</body>
</html>
Method 2. Set display:inline; method, similar to the first method, set the display type to inline elements, and perform variable width elements Attribute setting
Example:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>不定宽块状元素水平居中</title>
<style>
.container{text-align:center;}
.container ul{list-style:none;margin:0;padding:0;display:inline;}
.container li{margin-right:8px;display:inline;}
</style>
</head>
<body>
<p class="container">
<ul>
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
</ul>
</p>
</body>
</html>
Method 3. Set position:relative and left:50% to use relative positioning method, offset the element by 50% to the left, that is, to achieve the purpose of centering
Example:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>不定宽块状元素水平居中</title>
<style>
/*下面是代码任务区*/
.wrap{
clear:both;
float:left;
position:relative;
left:50%
}
.wrap-center{
background:#ccc;
position:relative;
left:-50%;
}
</style>
</head>
<body>
<!--下面是代码任务区-->
<p class="wrap">
<p class="wrap-center">我们来学习一下这种方法。</p>
</p>
</body>
</html>
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