【10】Bootstrap — 辅助类

Bootstrap样式技巧
本文介绍了使用Bootstrap框架进行网页设计时的一些实用技巧,包括文本颜色、背景色设置、元素浮动与居中处理、显示与隐藏效果等。

情景文本颜色

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <p class="text-muted">Fusce dapibus, tellus ac cursus commodo, tortor mauris nibh.</p>
        <p class="text-primary">Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
        <p class="text-success">Duis mollis, est non commodo luctus, nisi erat porttitor ligula.</p>
        <p class="text-info">Maecenas sed diam eget risus varius blandit sit amet non magna.</p>
        <p class="text-warning">Etiam porta sem malesuada magna mollis euismod.</p>
        <p class="text-danger">Donec ullamcorper nulla non metus auctor fringilla.</p>
    </body>
</html>

情景文本颜色

情景背景色

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <p class="bg-primary">Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
        <p class="bg-success">Duis mollis, est non commodo luctus, nisi erat porttitor ligula.</p>
        <p class="bg-info">Maecenas sed diam eget risus varius blandit sit amet non magna.</p>
        <p class="bg-warning">Etiam porta sem malesuada magna mollis euismod.</p>
        <p class="bg-danger">Donec ullamcorper nulla non metus auctor fringilla.</p>
    </body>
</html>

情景背景色

关闭按钮

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <button type="button" class="close"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>
    </body>
</html>

关闭按钮

三角符号

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <span class="caret"></span>
    </body>
</html>

三角符号

快速浮动

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <div class="pull-left" style="width: 100px;height: 100px;background-color: greenyellow;">...</div>
        <div class="pull-right" style="width: 100px;height: 100px;background-color: red;">...</div>
    </body>
</html>

快速浮动

让内容块居中

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <div class="center-block" style="width: 100px;height: 100px;background-color: brown;"></div>
    </body>
</html>

内容块居中

清除浮动

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <div>
            <div style="float: left;width: 100px;height: 100px;background-color: green;">AAAAA</div>
            <div style="float: right;width: 100px;height: 100px;background-color: red;">BBBBB</div>
        </div>
        <div style="height: 110px;width: 110px;background-color: blue;">CCCC</div>
        <hr/>
        <div class="clearfix">
            <div style="float: left;width: 100px;height: 100px;background-color: green;">AAAAA</div>
            <div style="float: right;width: 100px;height: 100px;background-color: red;">BBBBB</div>
        </div>
        <div style="height: 110px;width: 110px;background-color: blue;">CCCC</div>
    </body>
</html>

清除浮动

显示或隐藏内容

<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap</title>
        <link rel="stylesheet" href="css/bootstrap.css" />
        <script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
        <script type="text/javascript" src="js/bootstrap.js"></script>
    </head>
    <body style="padding: 20px;">
        <div>AA</div>
        <div>BB</div>
        <hr/>
        <div class="show">AA</div>
        <div class="hidden">BB</div>
    </body>
</html>

显示或隐藏

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