ZhangYang's Blog

bootstrap

发表于 | 分类于

安装使用

  • cdn方式
1
2
3
4
5
6
7
8
<!-- 新 Bootstrap4 核心 CSS 文件 -->
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<!-- popper.min.js 用于弹窗、提示、下拉菜单 -->
<script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
<!-- 最新的 Bootstrap4 核心 JavaScript 文件 -->
<script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
  • npm方式
1
npm install bootstrap@4.0.0-beta.2

网格系统

  • Bootstrap提供了一套响应式、移动设备优先的流式网格系统

  • 随着屏幕或视口（viewport）尺寸的增加，系统会自动分为最多 12 列

网格类

  • .col- 针对所有设备
  • .col-sm- 平板 - 屏幕宽度等于或大于 576px
  • .col-md- 桌面显示器 - 屏幕宽度等于或大于 768px)
  • .col-lg- 大桌面显示器 - 屏幕宽度等于或大于 992px)
  • .col-xl- 超大桌面显示器 - 屏幕宽度等于或大于 1200px)

Bootstrap 4 网格的基本结构

  • 等宽响应式列:在移动设备上，即屏幕宽度小于 576px 时，四个列将会上下堆叠排版
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
  <h1>Hello World!</h1>
  <p>重置浏览器大小查效果。</p>
  <p> 在移动设备上，即屏幕宽度小于 576px 时，四个列将会上下堆叠排版。</p>
  <div class="row">
    <div class="col-sm-3" style="background-color:lavender;">.col-sm-3</div>
    <div class="col-sm-3" style="background-color:lavenderblush;">.col-sm-3</div>
    <div class="col-sm-3" style="background-color:lavender;">.col-sm-3</div>
    <div class="col-sm-3" style="background-color:lavenderblush;">.col-sm-3</div>
  </div>
</div>
</body>
</html>
  • 不等宽响应式列: 在移动设备上，即屏幕宽度小于 576px 时，四个列将会上下堆叠排版
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
  <h1>Hello World!</h1>
  <p>重置浏览器大小查效果。</p>
  <p>在移动设备上，即屏幕宽度小于 576px 时，四个列将会上下堆叠排版。</p>
  <div class="row">
    <div class="col-sm-4" style="background-color:lavender;">.col-sm-4</div>
    <div class="col-sm-8" style="background-color:lavenderblush;">.col-sm-8</div>
  </div>
</div>
</body>
</html>

颜色

  • 文字颜色
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>代表指定意义的文本颜色</h2>
  <p class="text-muted">柔和的文本。</p>
  <p class="text-primary">重要的文本。</p>
  <p class="text-success">执行成功的文本。</p>
  <p class="text-info">代表一些提示信息的文本。</p>
  <p class="text-warning">警告文本。</p>
  <p class="text-danger">危险操作文本。</p>
  <p class="text-secondary">副标题。</p>
  <p class="text-dark">深灰色文字。</p>
  <p class="text-light">浅灰色文本（白色背景上看不清楚）。</p>
  <p class="text-white">白色文本（白色背景上看不清楚）。</p>
</div>
</body>
</html>
  • 背景颜色:一些实例中你需要与 .text-* 类一起使用
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>背景颜色</h2>
  <p class="bg-primary text-white">重要的背景颜色。</p>
  <p class="bg-success text-white">执行成功背景颜色。</p>
  <p class="bg-info text-white">信息提示背景颜色。</p>
  <p class="bg-warning text-white">警告背景颜色</p>
  <p class="bg-danger text-white">危险背景颜色。</p>
  <p class="bg-secondary text-white">副标题背景颜色。</p>
  <p class="bg-dark text-white">深灰背景颜色。</p>
  <p class="bg-light text-dark">浅灰背景颜色。</p>
</div>
</body>
</html>

表格

  • .table 类来设置基础表格的样式
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>基础表格</h2>
  <p>.table 类来设置基础表格的样式:</p>            
  <table class="table">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>
        <th>Email</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>John</td>
        <td>Doe</td>
        <td>john@example.com</td>
      </tr>
      <tr>
        <td>Mary</td>
        <td>Moe</td>
        <td>mary@example.com</td>
      </tr>
      <tr>
        <td>July</td>
        <td>Dooley</td>
        <td>july@example.com</td>
      </tr>
    </tbody>
  </table>
</div>
</body>
</html>
  • 通过添加 .table-striped 类，您将在 内的行上看到条纹
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>条纹表格</h2>
  <p>通过添加 .table-striped 类，来设置条纹表格:</p>            
  <table class="table table-striped">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>
        <th>Email</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>John</td>
        <td>Doe</td>
        <td>john@example.com</td>
      </tr>
      <tr>
        <td>Mary</td>
        <td>Moe</td>
        <td>mary@example.com</td>
      </tr>
      <tr>
        <td>July</td>
        <td>Dooley</td>
        <td>july@example.com</td>
      </tr>
    </tbody>
  </table>
</div>
</body>
</html>
  • .table-bordered 类可以为表格添加边框
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>带边框表格</h2>
  <p>.table-bordered 类可以为表格添加边框:</p>            
  <table class="table table-bordered">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>
        <th>Email</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>John</td>
        <td>Doe</td>
        <td>john@example.com</td>
      </tr>
      <tr>
        <td>Mary</td>
        <td>Moe</td>
        <td>mary@example.com</td>
      </tr>
      <tr>
        <td>July</td>
        <td>Dooley</td>
        <td>july@example.com</td>
      </tr>
    </tbody>
</table>
</div>
</body>
</html>

其它详见官网

图像形状

  • .rounded 类可以让图片显示圆角效果
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>圆角图片</h2>
  <p>.rounded 类可以让图片显示圆角效果：</p>            
  <img src="http://static.runoob.com/images/mix/cinqueterre.jpg" class="rounded" alt="Cinque Terre" width="304" height="236"> 
</div>
</body>
</html>
  • .rounded-circle 类可以设置椭圆形图片
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>椭圆图片</h2>
  <p>.rounded-circle 类可以设置椭圆形图片:</p>            
  <img src="http://static.runoob.com/images/mix/cinqueterre.jpg" class="rounded-circle" alt="Cinque Terre"> 
</div>
</body>
</html>
  • .img-thumbnail 类用于设置图片缩略图(图片有边框)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>缩略图</h2>
  <p>.img-thumbnail 类用于设置图片缩略图(图片有边框):</p>            
  <img src="http://static.runoob.com/images/mix/cinqueterre.jpg" class="img-thumbnail" alt="Cinque Terre">
</div>
</body>
</html>
  • 使用 .float-right 类来设置图片右对齐，使用 .float-left 类设置图片左对齐
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>图片对齐方式</h2>
  <p>使用 .float-right 类来设置突破右对齐，使用 .float-left 类设置图片左对齐:</p>
  <img src="http://static.runoob.com/images/mix/paris.jpg" class="float-left"> 
  <img src="http://static.runoob.com/images/mix/cinqueterre.jpg" class="float-right">
</div>
</body>
</html>
  • 通过在 标签中添加 .img-fluid 类来设置响应式图片
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>响应式图片</h2>
  <p>.img-fluid 类可以设置响应式图片，重置浏览器大小查看效果:</p>
  <img src="http://static.runoob.com/images/mix/paris.jpg" class="img-fluid"">
</div>
</body>
</html>

jumbotron

  • Jumbotron（超大屏幕）会创建一个大的灰色背景框，里面可以设置一些特殊的内容和信息
  • 通过在
    元素 中添加 .jumbotron 类来创建 jumbotron
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <div class="jumbotron">
    <h1>菜鸟教程</h1> 
    <p>学的不仅是技术，更是梦想！！！</p> 
  </div>
  <p>这是一些文本。</p>      
  <p>这是一些文本。</p>      
</div>
</body>
</html>
  • 创建一个没有圆角的全屏幕，可以在 .jumbotron-fluid 类里头的 div添加 .container 或 .container-fluid 类来实现
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="jumbotron jumbotron-fluid">
  <div class="container">
    <h1>菜鸟教程</h1> 
    <p>学的不仅是技术，更是梦想！！！</p>
  </div>
</div>
<div class="container">
  <p>是一些文本。</p>      
  <p>是一些文本。</p>      
</div>
</body>
</html>

信息提示框

  • 提示框可以使用 .alert 类, 后面加上 .alert-success, .alert-info, .alert-warning, .alert-danger, .alert-primary, .alert-secondary, .alert-light 或 .alert-dark 类来实现
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>提示框</h2>
  <p>提示框可以使用 .alert 类, 后面加上指定特定意义的颜色类来实现:</p>
  <div class="alert alert-success">
    <strong>成功!</strong> 指定操作成功提示信息。
  </div>
  <div class="alert alert-info">
    <strong>信息!</strong> 请注意这个信息。
  </div>
  <div class="alert alert-warning">
    <strong>警告!</strong> 设置警告信息。
  </div>
  <div class="alert alert-danger">
    <strong>错误!</strong> 失败的操作
  </div>
  <div class="alert alert-primary">
    <strong>首选!</strong> 这是一个重要的操作信息。
  </div>
  <div class="alert alert-secondary">
    <strong>次要的!</strong> 显示一些不重要的信息。
  </div>
  <div class="alert alert-dark">
    <strong>深灰色!</strong> 深灰色提示框。
  </div>
  <div class="alert alert-light">
    <strong>浅灰色!</strong>浅灰色提示框。
  </div>
</div>
</body>
</html>
  • 提示框中在链接的标签上添加 alert-link 类来设置匹配提示框颜色的链接
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>提示框添加链接</h2>
  <p>提示框中在链接的标签上添加 alert-link 类来设置匹配提示框颜色的链接：</p>
  <div class="alert alert-success">
    <strong>成功!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-info">
    <strong>信息!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-warning">
    <strong>警告!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-danger">
    <strong>错误!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-primary">
    <strong>首选!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-secondary">
    <strong>次要的!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-dark">
    <strong>深灰色!</strong>你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
  <div class="alert alert-light">
    <strong>灰色!</strong> 你应该认真阅读 <a href="#" class="alert-link">这条信息</a>。
  </div>
</div>
</body>
</html>
  • 在提示框中的 div 中添加 .alert-dismissable 类，然后在关闭按钮的链接上添加 class=”close” 和 data-dismiss=”alert” 类来设置提示框的关闭操作
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>关闭提示框</h2>
  <p>我们可以在提示框中的 div 中添加 .alert-dismissable 类，然后在关闭按钮的链接上添加 class="close" 和 data-dismiss="alert" 类来设置提示框的关闭操作。</p>
  <div class="alert alert-success alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>成功!</strong> 指定操作成功提示信息。
  </div>
  <div class="alert alert-info alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>信息!</strong> 请注意这个信息。
  </div>
  <div class="alert alert-warning alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>警告!</strong> 设置警告信息。
  </div>
  <div class="alert alert-danger alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>错误!</strong> 失败的操作。
  </div>
  <div class="alert alert-primary alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>首选!</strong> 这是一个重要的操作信息。
  </div>
  <div class="alert alert-secondary alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>次要的!</strong> 显示一些不重要的信息。
  </div>
  <div class="alert alert-dark alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>深灰色!</strong> 深灰色提示框。
  </div>
  <div class="alert alert-light alert-dismissable">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>浅灰色!</strong>浅灰色提示框。
  </div>
</div>
</body>
</html>
  • .fade 和 .show 类用于设置提示框在关闭时的淡出和淡入效果
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
  <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.bootcss.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>提示框动画</h2>
  <p>.fade 和 .show 类用于设置提示框在关闭时的淡出和淡入效果：</p>
  <div class="alert alert-success alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>成功!</strong> 指定操作成功提示信息。
  </div>
  <div class="alert alert-info alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>信息!</strong> 请注意这个信息。
  </div>
  <div class="alert alert-warning alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>警告!</strong> 设置警告信息。
  </div>
  <div class="alert alert-danger alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>错误!</strong> 失败的操作。
  </div>
  <div class="alert alert-primary alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>首选!</strong> 这是一个重要的操作信息。
  </div>
  <div class="alert alert-secondary alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>次要的!</strong> 显示一些不重要的信息。
  </div>
  <div class="alert alert-dark alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>深灰色!</strong> 深灰色提示框。
  </div>
  <div class="alert alert-light alert-dismissable fade show">
    <button type="button" class="close" data-dismiss="alert">&times;</button>
    <strong>浅灰色!</strong>浅灰色提示框。
  </div>
</div>
</body>
</html>
  • 其它组件看官网文档

响应式网站