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BootStrap

时间:2020-03-04 00:17:51      阅读:56      评论:0      收藏:0      [点我收藏+]

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##  BootStrap

  1、概念:一个前端开发的框架:Bootstrap是美国Twitter公司的设计师Mark Otto和Jacob Thornton合作基于HTML、CSS、JavaScript 开发的简洁、直观、强悍的前端开发框架,使得 Web 开发更加快捷。

      *  框架:一个半成品软件,开发人员可以在框架基础上,再进行开发,简化编码

      *  好处:

        1、定义了很多CSS样式和JS插件。我们开发人员可以直接使用这些样式和插件得到丰富的页面效果。

        2、响应式布局

          *  同一套页面可以兼容不同分辨率的设备。

  2、快速入门

    1、下载bootstrap

    2、在项目中将这三个文件夹复制进去

技术图片

 

 

     3、创建html页面,引入必要的资源文件(一般的话引入含min的文件,因为是压缩般的,加载速度快;没有min的适合源码阅读)

基本模板:

<!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">
    <!-- 上述3个meta标签*必须*放在最前面,任何其他内容都*必须*跟随其后! -->
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">

</head>
<body>
<h1>你好,世界!</h1>

<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
<script src="js/jquery-3.2.1.min.js"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="js/bootstrap.min.js"></script>
</body>
</html>

   3、响应式布局

    *  同一套页面可以兼容不同分辨率的设备。

    *  实现:依赖于栅格系统:将一行平均分为12个格子,可以指定元素占几个格子。

    *  步骤:

      1、定义容器。相当于之前的table

      *  容器的分类:

        1、container:两边留白

        2、container-fluid:100%  每一种设备都是100%宽度

      2、定义行。相当于之前的tr  样式:row

      3、定义元素。指定该元素在不同的设备上,所占的格子数目。  样式:col-设备代号-格子数目

        *  设备代号:

        1、xs:超小屏幕  手机(<768px):col-xs-12

        2、sm:小屏幕 平板(>=768px)

        3、md:中等屏幕 桌面显示器(>=992px)

        4、lg:大屏幕 大桌面显示器(>=1200px)

    *  注意:

      1、一行中,如果格子数目超过12,超出部分自动换行

      2、栅格类属性可以向上兼容。栅格类适用于屏幕宽度大于或等于分界点大小的设备

      3、如果设备宽度小于了设置栅格类属性的设备代码的最小值,会一个元素占满一整行

  4、CSS样式和JS插件

    全局CSS样式:

      *  按钮:class="btn btn-primary"  控制按钮样式

 

      *  图片:class="img-responsive img-circle" 图片在任意尺寸都占100%  后面一个是调整图片形状(有三种)

      *  表格:class="table table-bordered table-hover"

      *  表单:给表单项添加:class="form-control"

    组件:

      *  导航条:

 

<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>

 

      *  分页条:

 

<nav aria-label="Page navigation">
  <ul class="pagination">
    <li>
      <a href="#" aria-label="Previous">
        <span aria-hidden="true">&laquo;</span>
      </a>
    </li>
    <li><a href="#">1</a></li>
    <li><a href="#">2</a></li>
    <li><a href="#">3</a></li>
    <li><a href="#">4</a></li>
    <li><a href="#">5</a></li>
    <li>
      <a href="#" aria-label="Next">
        <span aria-hidden="true">&raquo;</span>
      </a>
    </li>
  </ul>
</nav>

 

    插件:

      *  轮播图:

 

<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <ol class="carousel-indicators">
    <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
    <li data-target="#carousel-example-generic" data-slide-to="1"></li>
    <li data-target="#carousel-example-generic" data-slide-to="2"></li>
  </ol>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <img src="..." alt="...">
      <div class="carousel-caption">
        ...
      </div>
    </div>
    <div class="item">
      <img src="..." alt="...">
      <div class="carousel-caption">
        ...
      </div>
    </div>
    ...
  </div>

  <!-- Controls -->
  <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

   5、综合案例

<!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">
    <!-- 上述3个meta标签*必须*放在最前面,任何其他内容都*必须*跟随其后! -->
    <title>黑马旅游网</title>

    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">

    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
    <script src="js/jquery-3.2.1.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="js/bootstrap.min.js"></script>
    <style>
        .paddtop {
            padding-top: 12px;
        }

        .search-input {
            float: left;
            border: 2px solid #ffc900;
            width: 400px;
            height: 35px;
            padding-left: 5px;
            margin-top: 15px;
        }

        .sersearch-btn {
            float: left;
            border: 2px solid #ffc900;
            width: 90px;
            height: 35px;
            background-color: #ffc900;
            text-align: center;
            line-height: 35px; /*垂直居中*/
            margin-top: 15px;
        }

        .jx {
            border-bottom: 2px solid #ffc900;
            padding: 5px;
        }

        .company {
            height: 40px;
            background-color: #ffc900;
            text-align: center;
            line-height: 40px;
            font-size: 12px;
        }
    </style>
</head>
<body>
<!--1、页眉部分-->
<header class="container-fluid">
    <div class="row">
        <img src="imgs/top_banner.jpg" class="img-responsive" width="100%">
    </div>
    <div class="row paddtop">
        <div class="col-md-3">
            <img src="imgs/logo.jpg" class="img-responsive">
        </div>
        <div class="col-md-5">
            <input class="search-input" placeholder="请输入线路名称">
            <a class="sersearch-btn" href="#">搜索</a>
        </div>
        <div class="col-md-4">
            <img src="imgs/hotel_tel.png" class="img-responsive">
        </div>
    </div>
    <!--导航栏-->
    <div class="row">
        <nav class="navbar navbar-default">
            <div class="container-fluid">
                <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header">
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                            data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a class="navbar-brand" href="#">Brand</a>
                </div>

                <!-- Collect the nav links, forms, and other content for toggling -->
                <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                    <ul class="nav navbar-nav">
                        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
                        <li><a href="#">Link</a></li>
                        <li><a href="#">Link</a></li>
                        <li><a href="#">Link</a></li>
                        <li><a href="#">Link</a></li>
                        <li><a href="#">Link</a></li>
                        <li><a href="#">Link</a></li>
                    </ul>
                </div>
            </div>
        </nav>
    </div>
    <!--轮播图-->
    <div class="row">
        <div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
            <!-- Indicators -->
            <ol class="carousel-indicators">
                <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
                <li data-target="#carousel-example-generic" data-slide-to="1"></li>
                <li data-target="#carousel-example-generic" data-slide-to="2"></li>
            </ol>

            <!-- Wrapper for slides -->
            <div class="carousel-inner" role="listbox">
                <div class="item active">
                    <img src="imgs/banner_1.jpg" alt="..." width="100%">
                </div>
                <div class="item">
                    <img src="imgs/banner_2.jpg" alt="..." width="100%">
                </div>
                <div class="item">
                    <img src="imgs/banner_3.jpg" alt="..." width="100%">
                </div>

            </div>

            <!-- Controls -->
            <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
                <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
                <span class="sr-only">Previous</span>
            </a>
            <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
                <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
                <span class="sr-only">Next</span>
            </a>
        </div>
    </div>
</header>
<!--2、主体部分-->
<div class="container">
    <div class="row jx">
        <img src="imgs/icon_5.jpg">
        <span>黑马精选</span>
    </div>
    <div class="row paddtop">
        <div class="col-md-3">
            <div class="thumbnail">
                <img src="imgs/jiangxuan_3.jpg">
                <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                <font color="red">¥ 699</font>
            </div>
        </div>
        <div class="col-md-3">
            <div class="thumbnail">
                <img src="imgs/jiangxuan_3.jpg">
                <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                <font color="red">¥ 699</font>
            </div>
        </div>
        <div class="col-md-3">
            <div class="thumbnail">
                <img src="imgs/jiangxuan_3.jpg">
                <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                <font color="red">¥ 699</font>
            </div>
        </div>
        <div class="col-md-3">
            <div class="thumbnail">
                <img src="imgs/jiangxuan_3.jpg">
                <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                <font color="red">¥ 699</font>
            </div>
        </div>
    </div>
    <div class="row jx">
        <img src="imgs/icon_6.jpg">
        <span>国内游</span>
    </div>
    <div class="row paddtop">
        <div class="col-md-4">
            <img src="imgs/guonei_1.jpg">
        </div>
        <div class="col-md-8">
            <div class="row">
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
            </div>
            <div class="row">
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="thumbnail">
                        <img src="imgs/jiangxuan_4.jpg">
                        <p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)</p>
                        <font color="red">¥ 699</font>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
<!--3、页脚部分-->
<footer class="container-fluid">
    <div class="row">
        <img src="imgs/footer_service.png" class="img-responsive">
    </div>
    <div class="row company">
        江苏传智播客科技股份有限公司&nbsp;版权所有Copyright&nbsp;2006-2018,All&nbsp;Rights&nbsp;Reserved&nbsp;苏ICP备&nbsp;16007882
    </div>
</footer>
</body>
</html>

 

BootStrap

标签:指定元素   previous   名称   编码   The   data-   meta标签   精选   快速   

原文地址:https://www.cnblogs.com/21seu-ftj/p/12329108.html

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