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Method: 1. Use the text-align attribute to set the text to be horizontally centered, the syntax "text-align:center"; 2. Use the line-height attribute to set the text to be vertically centered, the syntax "line-height: value"; 3. Use CSS3’s flex layout to center the text vertically.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
1. Use the text-align attribute to center the text horizontally.
The text-align attribute specifies the horizontal alignment of the text in the element. Set the text by using the center value. Centered.
text-align is a basic attribute that affects how lines of text in an element are aligned with each other. The values left, right, and center will cause the text in the element to be left-aligned, right-aligned, and centered respectively. If you want to center the text, just use center.
This attribute sets the centering of some inline objects (or similar elements) such as text and img tags.
This attribute has the following characteristics:
1) The center of text-align is applied to a container. It only targets the text in the container and the display in the container is inline or inline. -Block container, if the display of the container inside is block, the content of the container inside will not be centered.
2), text-align is downwardly transitive and will continue to be passed to child elements. If you set a div, the content in its child divs will also be centered.
nbsp;html>
<meta>
<title>css 水平居中</title>
<style>
.box {
width: 400px;
height: 100px;
background: pink;
text-align:center;
}
</style>
<div>css 水平居中了--文本文字</div>
Rendering:
2. Use the line-height attribute to center the text vertically
line-height property sets the distance between lines (line height). Negative values are not allowed.
This property affects the layout of the line box. When applied to a block-level element, it defines the minimum distance between baselines in that element rather than the maximum distance.
nbsp;html>
<meta>
<title>css 垂直居中</title>
<style>
.box {
width: 300px;
height: 300px;
background: paleturquoise;
line-height:300px;
}
</style>
<div>css 垂直居中了--文本文字</div>
Rendering:
3. CSS3 flex layout makes the text vertically centered
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>css 垂直居中</title>
<style>
.box{
width: 300px;
height: 200px;
background: #ccc;
/*设置为伸缩容器*/
display: -webkit-box;
display: -moz-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
/*垂直居中*/
-webkit-box-align: center;/*旧版本*/
-moz-box-align: center;/*旧版本*/
-ms-flex-align: center;/*混合版本*/
-webkit-align-items: center;/*新版本*/
align-items: center;/*新版本*/
}
</style>
</head>
<body>
<div class="box">css 垂直居中--文本文字（弹性布局）</div>
</body>
</html>Effect:
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