CSS 文本效果

CSS 文本溢出、自动换行、换行规则和写作模式

在本章中，您将了解以下属性：

text-overflow
word-wrap
word-break
writing-mode

CSS 文本溢出

CSS text-overflow 属性指定如何溢出内容显示的内容应向用户发出信号。

可以对其进行剪辑：

This is some long text that will not fit in the box

或者它可以呈现为省略号 (...)：

This is some long text that will not fit in the box

CSS代码如下：

例子

 p.test1 {
  
white-space: nowrap; 
  width: 200px; 
  border: 1px solid #000000;
    
overflow: hidden;
  
text-overflow: clip; 
}
p.test2 {
  white-space: nowrap; 
  width: 200px; 
  border: 1px solid #000000;
    
overflow: hidden;
  
text-overflow: ellipsis; 
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style> 
p.test1 {
  white-space: nowrap; 
  width: 200px; 
  border: 1px solid #000000;
  overflow: hidden;
  text-overflow: clip;
}

p.test2 {
  white-space: nowrap; 
  width: 200px; 
  border: 1px solid #000000;
  overflow: hidden;
  text-overflow: ellipsis;
}
</style>
</head>
<body>

<h1>The text-overflow Property</h1>
<p>The following two paragraphs contains a long text that will not fit in the box.</p>

<h2>text-overflow: clip:</h2>
<p class="test1">This is some long text that will not fit in the box</p>

<h2>text-overflow: ellipsis:</h2>
<p class="test2">This is some long text that will not fit in the box</p>

</body>
</html>

以下示例展示了如何将鼠标悬停在元素上时显示溢出的内容：

例子

  div.test:hover {
  overflow: visible;
}

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style> 
div.test {
  white-space: nowrap; 
  width: 200px; 
  overflow: hidden; 
  border: 1px solid #000000;
}

div.test:hover {
  overflow: visible;
}
</style>
</head>
<body>

<p>Hover over the two divs below, to see the entire text.</p>
<div class="test" style="text-overflow:ellipsis;">This is some long text that will not fit in the box</div>
<br>
<div class="test" style="text-overflow:clip;">This is some long text that will not fit in the box</div>

</body>
</html>

CSS 自动换行

CSS word-wrap 属性允许将长单词分解并换行到下一行。

如果一个单词太长而无法容纳在某个区域中，它就会扩展到外部：

This paragraph contains a very long word: thisisaveryveryveryveryveryverylongword. The long word will break and wrap to the next line.

word-wrap 属性允许您强制文本换行 - 即使这意味着在单词中间将其拆分：

This paragraph contains a very long word: thisisaveryveryveryveryveryverylongword. The long word will break and wrap to the next line.

CSS代码如下：

例子

允许长单词被分解并换行到下一行：

  p {
  word-wrap: break-word;
}

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style> 
p.test {
  width: 11em; 
  border: 1px solid #000000;
  word-wrap: break-word;
}
</style>
</head>
<body>

<h1>The word-wrap Property</h1>

<p class="test">This paragraph contains a very long word: thisisaveryveryveryveryveryverylongword. The long word will break and wrap to the next line.</p>

</body>
</html>

CSS 分词

CSS word-break 属性指定换行规则。

This paragraph contains some text. This line will-break-at-hyphens.

This paragraph contains some text. The lines will break at any character.

CSS代码如下：

例子

  p.test1 {
  word-break: 
keep-all;
}
p.test2 {
  word-break: 
break-all;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style> 
p.test1 {
  width: 140px; 
  border: 1px solid #000000;
  word-break: keep-all;
}

p.test2 {
  width: 140px; 
  border: 1px solid #000000;
  word-break: break-all;
}
</style>
</head>
<body>

<h1>The word-break Property</h1>

<p class="test1">This paragraph contains some text. This line will-break-at-hyphens.</p>

<p class="test2">This paragraph contains some text. The lines will break at any character.</p>

</body>
</html>

CSS书写模式

CSS writing-mode 属性指定文本行是水平还是垂直排列。

一些带有 span 元素的文本，具有 Vertical-rl 书写模式。

Some text with a span element with a vertical-rl writing-mode.

下面的例子展示了一些不同的写入模式：

例子

  p.test1 {
  writing-mode: horizontal-tb; 
}
span.test2 {
  writing-mode: vertical-rl; 
}
p.test2 {
  writing-mode: 
   vertical-rl; 
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style> 
p.test1 {
  writing-mode: horizontal-tb; 
}

span.test2 {
  writing-mode: vertical-rl; 
}

p.test2 {
  writing-mode: vertical-rl; 
}
</style>
</head>
<body>
<h1>The writing-mode Property</h1>

<p class="test1">Some text with default writing-mode.</p>

<p>Some text with a span element with a <span class="test2">vertical-rl</span> writing-mode.</p>

<p class="test2">Some text with writing-mode: vertical-rl.</p>

</body>
</html>