我是html/css的新手,我尝试过多次使用简单的html/css文件,但仍然无法工作。我想把内容放在浏览器的中心。
两个源代码位于同一个目录下,下面是源代码:
index.html:
<!DOCTYPE HTML>
<html>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<head>
<link rel="alternate stylesheet" type="text/css" href="style.css" />
</head>
<body>
<hr>
<h2>Head Title2</h2>
<p align="center">write something in the center</p>
<hr>
<h4>Content</h4>
<div class="centered">
Introduction<br>
Chapter<br>
<ol>
<li>Chapter-1<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-2<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-3<br>
<ol>
<li>Section-1<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-2<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-3<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
</ol>
</li>
</ol>
<hr>
<h4>Reference</h4>
<ul>
<li>book1</li>
<li>book2</li>
<li>book3</li>
</ul>
</div>
<hr>
</body>
</html>
style.css:
h1 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 48px;
}
h2 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 44px;
}
h3 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 42px;
}
h4 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 40px;
}
p {
text-indent: 25px;
}
body {
margin: 0;
padding: 0;
text-align: center; /* !!! */
}
.centered {
margin: 0 auto;
width: 800px;
}
但是所有的内容都在左边。它显示如下:
我希望内容在中间部分,并保持相同的格式。我该怎么办?
此外,我发现我的h1-h4css不工作,当我修改字体大小时,index.html根本没有改变。为什么是这样?
感谢您的帮助,在阅读@J.Sahbu的代码之后,我将我的源代码更新如下:
index.html:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<hr>
<h2>Head Title2</h2>
<p align="center">write something in the center</p>
<hr>
<h4>Content</h4>
Introduction<br>
Chapter<br>
<ol>
<li>Chapter-1<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-2<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-3<br>
<ol>
<li>Section-1<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-2<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-3<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
</ol>
</li>
</ol>
<hr>
<h4>Reference</h4>
<ul>
<li>book1</li>
<li>book2</li>
<li>book3</li>
</ul>
<hr>
</body>
</html>
style.css:
h1 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 34px;
}
h2 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 30px;
}
h3 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 26px;
}
h4 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 24px;
}
p {
text-indent: 25px;
}
body {
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 20px;
margin-left: 20%;
margin-right: 20%;
min-width: 600px;
max-width: 1024px;
}
这种风格正是我想要的。
发布于 2017-05-01 08:15:25
使内容水平居中的最简单和最自然的方法是在元素上使用display: inline-block;
,在其父元素上使用text-align: center
。
它在块元素上优于margin: 0 auto
,它不需要宽度,它只是根据其内容宽度进行调整
因此,将您的centered
规则更改为此,它将正确地居中
.centered {
display: inline-block;
}
当父元素上的text-align: center
生成centered
元素中的文本时,centered
元素也以居中对齐,如
引言 第二章
只需将text-align: left
添加到centered
规则中即可
.centered {
display: inline-block;
text-align: left;
}
堆栈段
h1 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 48px;
}
h2 {
text-align: center;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 44px;
}
h3 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 42px;
}
h4 {
text-align: left;
font-family: Cambria,Calibri,"Arial","Microsoft YaHei","黑体","宋体",sans-serif;
font-size: 40px;
}
/* removed this as it cause the text to not center correct
p {
text-indent: 25px;
}
*/
body {
margin: 0;
padding: 0;
text-align: center; /* !!! */
}
.centered {
display: inline-block;
text-align: left;
}
<hr>
<h2>Head Title2</h2>
<p align="center">write something in the center</p>
<hr>
<h4>Content</h4>
<div class="centered">
Introduction<br>
Chapter<br>
<ol>
<li>Chapter-1<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-2<br>
<ol>
<li>Section-1</li>
<li>Section-2</li>
<li>Section-3</li>
<li>Section-4</li>
</ol>
</li>
<li>Chapter-3<br>
<ol>
<li>Section-1<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-2<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
<li>Section-3<br>
<ol>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ol>
</li>
</ol>
</li>
</ol>
<hr>
<h4>Reference</h4>
<ul>
<li>book1</li>
<li>book2</li>
<li>book3</li>
</ul>
</div>
<hr>
https://stackoverflow.com/questions/43715732
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