图片轮播（bootstrap）与 圆角搜索框(纯css)

 <!DOCTYPE html>
 <html>
     <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>图片轮播+底部居中搜索框</title>

         <link href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
         <link href="//cdn.bootcss.com/font-awesome/4.4.0/css/font-awesome.min.css" rel="stylesheet">

         <script src="//cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
         <script src="/mobile/addon/jquery.mmenu.min.all.js"></script>
         <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
 <style type="text/css">
     *{
         margin:0px;
         padding:0px;

     }
     #carousel-example-generic{
         width:680px;
         height:480px;

     }
     #search{
         position:relative;
         width:680px;   　　<!--可以设置为100%，以适应窗口变化，始终居中对齐-->
         height:24px;
     }
     #search-wrap{
         position:absolute;
         margin-top:-10px;　<!--达到覆盖图片轮播底部的作用-->　
         left:50%;　　　　　　<!--这部分是搜索框居中显示的关键。-->
         margin-left:-130px;
         width:260px;　　　　
         height:36px;　　　　
         border-radius:18px;
         box-shadow: 0 0 3px rgba(0,0,0,.14);
         background-color:#FFF;

     }

     #search-wrap .search-content{
         box-shadow: none;

         border:0 none;
         font-family: "Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",Arial,Helvetica,sans-serif;
         margin-top:3px;
         margin-left:18px;
         width:190px;
         height:30px;
     }
     #search-wrap .search-btn{
         border:0px;
         float:right;
         margin:4px 4px 4px 0;
         width:46px;
         height:28px;
         border-radius:14px;
         background-color:#2980b9;
         color:#FFF;
         text-align:center;
         line-height:28px;

     }
 }

 </style>
 </head>

 <body>

 <div class="content">

 <!-- bootstrap  轮播-->
 <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="/mobile/img/jordan1.png" alt="first"> <!--自行添加图片 -->
           <div class="carousel-caption">
            <h1> Micheal Jordan</h1>
           </div>
         </div>
         <div class="item">
           <img src="/mobile/img/jordan2.png" alt="second"> <!--自行添加图片 -->
           <div class="carousel-caption">
                <h1> Micheal Jordan</h1>
           </div>
         </div>
         <div class="item">
           <img src="/mobile/img/jordan3.png" alt="third"> <!--自行添加图片 -->
           <div class="carousel-caption">
              <h1>Micheal Jordan</h1>
           </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>

 <!-- 搜索框 -->
 <div id="search">
 <div id="search-wrap">
     <input class="search-content"  type="text" placeholder="输入搜索内容" name="word">
     <button class="search-btn" type="submit">搜索</button>
 </div>
 </div>

         </div> <!-- content end -->
     </body>
 </html>