bootstrap练习制作网页

时间：2023-12-03 15:11:20

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>

反色的导航条

<nav class="navbar navbar-inverse">

  ...

</nav>

四边不要圆角，改成直角，添加样式

 .navbar {

            border-radius:0;

        }

在输入框的任意一侧添加额外元素或按钮。你还可以在输入框的两侧同时添加额外元素。

我们不支持在输入框的单独一侧添加多个额外元素（.input-group-addon 或 .input-group-btn）。

<div class="input-group">

  <span class="input-group-addon" id="basic-addon1">@</span>

  <input type="text" class="form-control" placeholder="Username" aria-describedby="basic-addon1">

</div>
<div class="input-group">

      <input type="text" class="form-control" placeholder="Search for...">

      <span class="input-group-btn">

        <button class="btn btn-default" type="button">Go!</button>

      </span>

    </div><!-- /input-group -->

栅格：规定一行是12格，如果一行分成 10格，并且首格向右移动1格，可以如下

      <div class="container">

            <div class="row">

                <div class="col-lg-5 col-lg-offset-1 col-md-5">

                    <h3>公司简介</h3>

                </div>

                <div class="col-lg-5  col-md-5 hidden-sm hidden-xs">

                    <img src="data:images/timg.jpg" class="img-circle img-responsive" />

                </div>

            </div>

        </div>

img-responsive是图片响应式的意思，在Bootstrap框架中，有一个.img-responsive的CSS样式。应用这个样式以后，图片就会变成响应式图片。

hidden-sm hidden-xs 是网页宽带小到992px 和768px时隐藏此栅格，此时只剩下'<h3>公司简介',<h3>的上边高度怎么控制呢？答案如下：

 @media(max-width:1200px){

            h3 {

                margin-top:60px;

            }

        }

        @media(max-width:992px){

            h3{

                margin-top:10px;

            }

        }

背景塌陷问题：在div 中一栅格中有背景图，当网页缩小时，此行就成一格显示，此时背景图比文字塌陷下去，解决方法：在div中添加样式即可：overflow:hidden;

练习后的代码如下：：：：：

<!DOCTYPE html>

<html lang="zh-CN">

<head>

    <meta charset="gbk">

    <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">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->

    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->

    <!--[if lt IE 9]>

      <script src="https://cdn.bootcss.com/html5shiv/3.7.3/html5shiv.min.js"></script>

      <script src="https://cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>

    <![endif]-->

    <style>

        .navbar {

            margin-bottom: 0;

            min-height: 50px;

            border-radius: 0;

        }

        .navbar-brand {

            padding: 0 15px;

        }

        form .btn {

            border-color: #000;

            color: red;

        }

        body .jumbotron {

            background: url(images/bg.jpg) center center repeat-x;

            padding: 10px 0 0 0;

        }

        .jumbotron h3 {

            color: #ffd800;

            font-size: 20px;

            margin-top: 90px;

            line-height: 1;

        }

        .jumbotron p {

            font-size: 16px;

            color: #e3e3e3;

            line-height: 28px;

            margin-top: 20px;

        }

        .con-title {

            color: #4cff00;

        }

        .con-detail {

            line-height: 28px;

        }

        .list-item {

            padding-left: 118px;

            height: 118px;

            background: url(images/item.png) no-repeat left center;

            background-size: 110px 110px;

            margin-bottom: 30px;

            overflow: hidden;

            //解决背景塌陷;

        }

            .list-item h3 {

                color: #4cff00;

            }

            .list-item p {

                line-height: 28px;

            }

        @media(max-width:1200px) {

            .jumbotron h3 {

                margin-top: 60px;

            }

        }

        @media(max-width:992px) {

            .jumbotron h3 {

                margin-top: 10px;

            }

        }

        .case-item {

            padding: 0;

            position:relative;

        }

            .case-item img {

                width: 100%;

                height: 100%;

            }

            .case-item div {

                width: 100%;

                height: 100%;

                background:#00ff90;

                position:absolute;

                left:0;

                top:0;

                display:none;

            }

            .case-item:hover div {

                display:block;

            }

    </style>

</head>

<body>

    <nav class="navbar navbar-inverse">

        <div class="container">

            <!-- 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="#">

                    <img src="data:images/logo.jpg" width="100" height="50" />

                </a>

            </div>

            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">

                <ul class="nav navbar-nav">

                    <li class="active"><a href="#">首页 <span class="sr-only">(current)</span></a></li>

                    <li><a href="#">源码</a></li>

                    <li><a href="#">生产</a></li>

                    <li><a href="#">Sass</a></li>

                    <li><a href="#">安装</a></li>

                    <li><a href="#">下载</a></li>

                </ul>

                <form class="navbar-form navbar-right">

                    <div class="input-group">

                        <input type="text" class="form-control" placeholder="Search for...">

                        <span class="input-group-btn">

                            <button class="btn btn-default" type="button">Go!</button>

                        </span>

                    </div><!-- /input-group -->

                </form>

            </div><!-- /.navbar-collapse -->

        </div><!-- /.container-fluid -->

    </nav>

    <div class="jumbotron">

        <div class="container">

            <div class="row">

                <div class="col-lg-5 col-lg-offset-1 col-md-5">

                    <h3>公司简介</h3>

                    <p>如果需要让巨幕组件的宽度与浏览器宽度一致并且没有圆角，请把此组件放在所有 .container 元素的外面，并在组件内部添加一个 .container 元素。</p>

                </div>

                <div class="col-lg-5  col-md-5 hidden-sm hidden-xs">

                    <img src="data:images/timg.jpg" class="img-circle img-responsive" />

                </div>

            </div>

        </div>

    </div>

    <div class="container-fuild">

        <div class="container">

            <div class="row">

                <h3 class="con-title text-center">解决方案</h3>

                <div class="con-detail text-center col-lg-8 col-lg-offset-2">1000万图标下载png免费下载电商素材,平面素材,APP素材,PNG素材,为2000万设计师服务专注图标下载png帮助2000万设计师提升10倍工作效率,快速设计出精品作品升职加薪奥!</div>

            </div>

            <div class="row" style="margin-top:60px;">

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

                <div class="col-lg-4 list-item col-md-6 col-sm-6">

                    <h3>网络集成</h3>

                    <p>昵图网所有作品均是用户自行上传分享并拥有版权或使用权</p>

                </div>

            </div>

        </div>

    </div>

    <div class="container">

        <div class="row" style="margin:0 15px;">

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/1.jpg" />

                <div><h3>成功案例1111</h3></div>

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/2.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/3.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/4.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/5.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/6.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/7.jpg" />

            </div>

            <div class="col-lg-3 case-item col-md-4 col-sm-6">

                <img src="data:images/8.jpg" />

            </div>

        </div>

    </div>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->

    <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>

    <!-- Include all compiled plugins (below), or include individual files as needed -->

    <script src="js/bootstrap.min.js"></script>

</body>

</html>

测试时把页面进行缩放再查看发生了什么变化 。

胶囊导航，nav-stacked是垂直展示

            <ul class="nav nav-pills nav-stacked" >

                                <li><a href="">添加用户</a></li>

                                <li><a href="">删除用户</a></li>

                                <li><a href="">管理用户</a></li>

                            </ul>

收缩式， data-parent="#accordion"是每次只能打开一个，每面板独自打开互不影响可以删除此句，class="panel-collapse collapse in"中in是初次显示是打开状态，无in是关闭状态

<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">

                <div class="panel panel-default">

                    <div class="panel-heading" role="tab" id="headingOne">

                        <h4 class="panel-title">

                            <a role="button" data-toggle="collapse"  data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">

                                用户管理

                            </a>

                        </h4>

                    </div>

                    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">

                        <div class="panel-body">

                            <ul class="nav nav-pills nav-stacked">

                                <li><a href="">添加用户</a></li>

                                <li><a href="">删除用户</a></li>

                                <li><a href="">管理用户</a></li>

                            </ul>

                        </div>

                    </div>

                </div>

                <div class="panel panel-default">

                    <div class="panel-heading" role="tab" id="headingTwo">

                        <h4 class="panel-title">

                            <a class="collapsed" role="button" data-toggle="collapse"  data-parent="#accordion"  href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">

                                产品管理

                            </a>

                        </h4>

                    </div>

                    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">

                        <div class="panel-body">

                            <ul class="nav nav-pills nav-stacked" >

                                <li><a href="">产品列表</a></li>

                                <li><a href="">添加产品</a></li>

                                <li><a href="">删除产品</a></li>

                            </ul>

                         </div>

                    </div>

                </div>

            </div>

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