bootstrap移动 pc 响应轮播


PC端效果 width100%

移动端



<!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="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">

    <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
    <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
    <!--[if lt IE 9]>
      <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
      <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
    <![endif]-->

  </head>
  <body>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel" data-interval='4000'>
        <!-- 指示器 -->
        <ol class="carousel-indicators" id="carousel-indicators-demo">
          <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>
        <!-- 轮播图片及说明文字 -->
        <div class="carousel-inner" role="listbox">
          <div class="item active">
            <a href="#" class="pc_imgBox hidden-xs" style="background-image: url('https://static.runoob.com/images/mix/img_fjords_wide.jpg')"></a>
            <a href="#" class="m_imgBox hidden-lg hidden-md hidden-sm">
                    <img src="https://static.runoob.com/images/mix/img_fjords_wide.jpg">
            </a>
          </div>
          <div class="item">
            <a href="#" class="pc_imgBox hidden-xs" style="background-image: url('https://static.runoob.com/images/mix/img_fjords_wide.jpg')"></a>
            <a href="#" class="m_imgBox hidden-lg hidden-md hidden-sm">
              <img src="https://static.runoob.com/images/mix/img_nature_wide.jpg">
            </a>
          </div>
          <div class="item">
            <a href="#" class="pc_imgBox hidden-xs" style="background-image: url('https://static.runoob.com/images/mix/img_fjords_wide.jpg')"></a>
            <a href="#" class="m_imgBox hidden-lg hidden-md hidden-sm">
              <img src="https://static.runoob.com/images/mix/img_mountains_wide.jpg">
            </a>
          </div>
        </div>
        <!-- 控制按钮：左右切换 -->
        <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left"></span>
        </a>
        <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right"></span>
        </a>
      </div>


    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.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="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
    <script src="aaa.js"></script>
    <link rel="stylesheet" type="text/css" href="aaa.css">

  </body>
</html>

// css代码如下

/*
 * Style tweaks
 * --------------------------------------------------
 */
html {
  font-size: 10px;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}

body {
  font-family: @font-family-base;
  font-size: @font-size-base;
  line-height: @line-height-base;
  color: @text-color;
  background-color: @body-bg;
}

.pc_imgBox{
            display: block;
            height: 400px;
             100%;
            background-size: cover;
            background-position:  center;
            background-repeat: no-repeat;
}
.m_imgBox{
    display: block;
     100%;
}

li {
    display: list-item;
    text-align: -webkit-match-parent;
}
.carousel-indicators {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
     70%;
    z-index: 15;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center ！important;
    justify-content: center;
    padding-left: 0;
    margin-right: 15%;
    margin-left: 15%;
    list-style: none;
}

#carousel-indicators-demo .active{
	opacity: 1;
}
#carousel-indicators-demo li {
    box-sizing: content-box;
    -ms-flex: 0 1 auto;
    flex: 0 1 auto;
     30px;
    height: 3px;
    margin-right: 3px;
    margin-left: 3px;
    text-indent: -999px;
    cursor: pointer;
    background-color: #fff;
    background-clip: padding-box;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 0.1px solid transparent;
    border-right: 0.1px solid transparent;
    opacity: .5;
    transition: opacity .6s ease;
}
li {
    display: list-item;
    text-align: -webkit-match-parent;
}