Bootstrap 简明教程
Bootstrap - Text
本章将讨论有关常见的 Bootstrap 文本实用程序的内容。您可以使用 Bootstrap 实用程序类来自定义文本对齐、粗细、行高、换行、字体大小和其他格式选项。
This chapter will discuss about common Bootstrap text utilities. You can customize text alignment, weight, line height, wrapping, font size, and other formatting options using Bootstrap utility classes.
Text alignment
文本对齐类提供了将文本对齐到不同组件的便捷方式。这些类包括响应选项，这些选项使用与网格系统相同的视口宽度断点将文本对齐到开始、结束或中心位置。
Text alignment classes provide convenient ways to align text to different components. These classes include responsive options that align the text to the start, end, or center positions, using the same viewport width breakpoints as the grid system.
Note: 请调整浏览器大小，以查看文本相对于特定视口的对齐方式。
Note: Kindly resize the browser to see the alignment of text relative to the specific viewport.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="text-start text-info">Text aligned at starting position across all viewports sizes.</p>
<p class="text-center text-danger">Text aligned at center position across all viewports sizes.</p>
<p class="text-end text-warning">Text aligned at end position across all viewports sizes.</p>
<p class="text-sm-start text-primary">Text aligned at start on viewports sized SM (small) or wider.</p>
<p class="text-md-start text-primary">Text aligned at start on viewports sized MD (medium) or wider.</p>
<p class="text-lg-start text-primary">Text aligned at start on viewports sized LG (large) or wider.</p>
<p class="text-xl-start text-primary">Text aligned at start on viewports sized XL (extra-large) or wider.</p>
</body>
</html>Text wrapping and overflow
要实现文本包装，请将 .text-wrap 类应用到文本中。
To achieve text wrapping, apply the .text-wrap class to the text.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="badge bg-warning text-wrap" style="width: 8rem;">
This sentence should be wrapped.
</div>
</body>
</html>您可以通过使用 .text-nowrap 类来阻止文本换行。
You can stop text from wrapping by using the .text-nowrap class.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="text-nowrap bg-body-secondary border" style="width: 8rem;">
This sentence should overflow the parent.
</div>
</body>
</html>Word break
-
To avoid breaking your components layout with long strings of text, use .text-break to apply word-wrap: break-word and word-break: break-word.
-
To enhance browser compatibility, use word-wrap instead of overflow-wrap. Additionally, include the deprecated word-break: break-word to prevent problems with flex containers.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="text-break text-primary">TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT</p>
</body>
</html>Text transform
可以利用文本大小写类来转换组件中的文本大小写。
Text capitalization classes can be used to convert text case in components.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="text-lowercase text-danger">This is a lower case text.</p>
<p class="text-uppercase text-info"> This is a upper case text.</p>
<p class="text-capitalize text-warning">This is a capitalized text.</p>
</body>
</html>请注意 .text-capitalize 类如何修改每个单词的第一个字母，而不改变其他字母的大小写。
Note how does the .text-capitalize class modifies the initial letter of every word, without changing the case of other letters.
Font size
-
You can easily modify the font-size of text. Unlike heading classes (such as .h1–.h6) that include font-weight and line-height, these utilities focus only on font-size.
-
The size of these utilities matches HTML’s heading elements, with a decrease in size as the number increases.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="fs-1 text-info">This is a text of .fs-1 font size.</p>
<p class="fs-2 text-info">This is a text of .fs-2 font size.</p>
<p class="fs-3 text-info">This is a text of .fs-3 font size.</p>
<p class="fs-4 text-info">This is a text of .fs-4 font size.</p>
<p class="fs-5 text-info">This is a text of .fs-5 font size.</p>
<p class="fs-6 text-info">This is a text of .fs-6 font size.</p>
</body>
</html>修改 $font-sizes Sass 映射以自定义可用的字体大小。
Modify the $font-sizes Sass map to customize the available font sizes.
Font weight and italics
使用以下工具来更改文本的字体粗细或字体样式：
Use the below utilities to change font-weight or font-style of text:
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="fw-bold text-primary">This is a bold text.</p>
<p class="fw-bolder text-primary">This is a bolder weight text (relative to the parent element).</p>
<p class="fw-semibold text-primary">This is a semibold weight text.</p>
<p class="fw-medium text-secodary">This is a medium weight text.</p>
<p class="fw-normal text-secodary">This is a normal weight text.</p>
<p class="fw-light text-secodary">This is a light weight text.</p>
<p class="fw-lighter text-danger">This is a lighter weight text (relative to the parent element).</p>
<p class="fst-italic text-danger">This is a italic text.</p>
<p class="fst-normal text-danger">This is a text with normal font style.</p>
</body>
</html>Line height
要更改行高，请使用 .lh- * 实用程序类。
To change the height of the line, use .lh-* utility classes.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="lh-1 text-primary">This is a long text that demonstrates how the utilities affect the line height of an element. Classes can be added to the element directly or occasionally to its parent element. With the help of utility API, these classes can be modified as required.</p>
<p class="lh-sm text-secondary">This is a long text that demonstrates how the utilities affect the line height of an element. Classes can be added to the element directly or occasionally to its parent element. With the help of utility API, these classes can be modified as required.</p>
<p class="lh-base text-warning">This is a long text that demonstrates how the utilities affect the line height of an element. Classes can be added to the element directly or occasionally to its parent element. With the help of utility API, these classes can be modified as required.</p>
<p class="lh-lg text-info">This is a long text that demonstrates how the utilities affect the line height of an element. Classes can be added to the element directly or occasionally to its parent element. With the help of utility API, these classes can be modified as required.</p>
</body>
</html>Monospace
使用 .font-monospace 类，将选中的文本转换成等宽字体堆栈。
Convert the selected text to a monospace font stack using the .font-monospace class.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="font-monospace text-primary">Text in monospace font.</p>
</body>
</html>Reset color
使用 .text-reset 类还原文本或链接的颜色，并允许它从父组件中继承颜色。
Use the .text-reset class to restore the color of a text or link and allow it to inherit the color from its parent.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="text-body-danger">
There is a <a href="#" class="text-reset">reset link</a> in this muted text.
</p>
<p class="text-body-secondary">
There is a <a href="#">reset link without text-reset class</a> in this muted text.
</p>
</body>
</html>Text decoration
使用文本修饰类来提升组件中文本的外观。
Use text decoration classes to enhance the appearance of the text in components.
Example
您可以使用*编辑和运行*选项编辑并尝试运行此代码。
You can edit and try running this code using *Edit & Run *option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Text</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<p class="text-decoration-underline text-danger">There is a line underneath in this paragraph.</p>
<p class="text-decoration-line-through text-danger">A line runs through this text.</p>
<a href="#" class="text-decoration-none">There is no text decoration on this link.</a>
</body>
</html>