css实现悬浮效果的阴影

要实现的效果图：

图片.png

实现的代码：

-webkit-box-shadow:0px 3px 3px #c8c8c8 ;
-moz-box-shadow:0px 3px 3px #c8c8c8 ;
box-shadow:0px 3px 3px #c8c8c8 ;

整个页面的代码：

<!DOCTYPE html >
<html>
<head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=0.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0" />
        
        <style>
            .search {
                height: 46px;
                border: 1px solid #F0F1F1;
                border-radius: 25px;
                margin: 0 20px;
                
-webkit-box-shadow:0px 3px 3px #c8c8c8 ;
-moz-box-shadow:0px 3px 3px #c8c8c8 ;
box-shadow:0px 3px 3px #c8c8c8 ;
            }
            
            .search_left {
                float: left;
                margin: 5px 7px 5px 11px;
                width: 35px;
                height: 34px;
                border-radius: 50px;
                background: red;
                text-align: center;
                line-height: 42px;
            }
            
            .search_left img {
                width: 60%;
                height: 60%;
            }
            
            .search_input {
                float: left;
            }
            
            .search_input input {
                border: none;
                height: 30px;
                margin-top: 5px;
            }
            
            .search_right {
                float: right;
                width: 20px;
                height: 20px;
                margin: 9px 17px 5px 10px;
            }
            
            .search_right img {
                width: 100%;
                height: 100%;
            }
            
            .words {
                color: #D1D1D1;
                font-size: 12px;
                margin-top: 21px;
                margin-left: 30px;
            }
            
            .servers {
                overflow: auto;
            }
            
            .servers ul {
                overflow: auto;
                padding-left: 16px;
            }
            
            .servers ul li {
                list-style: none;
                background: #f6f6f9;
                float: left;
                width: 47px;
                height: 47px;
                text-align: center;
                margin: 5px 10px;
            }
            
            .servers ul li img {
                width: 60%;
                height: 60%;
                margin-top: 9px;
            }
        </style>
        <title>高校地图</title>
    </head>

    <body>
        <div class="container">
            <div class="search">
                <div class="search_left"><img src="img/back.png" /></div>
                <div class="search_input"><input type="text" placeholder="输入商铺名称，车位号，服务设施"></div>
                <div class="search_right"><img src="img/scale_search.png" alt="放大" /></div>
            </div>
        </div>

        <div class="words">常用服务设置...</div>

        <div class="servers">
            <ul>
                <li><img src="img/stairs.png" alt="手扶电梯" /></li>
                <li><img src="img/stairs2.png" alt="手扶电梯" /></li>
                <li><img src="img/sex.png" alt="手扶电梯" /></li>
                <li><img src="img/entris.png" alt="手扶电梯" /></li>
                <li><img src="img/exiy.png" alt="手扶电梯" /></li>
                <li><img src="img/moner.png" alt="手扶电梯" /></li>
            </ul>
        </div>
        
        <div class="words">车牌找车</div>
        <div class="servers">
            <ul>
                <li><img src="img/car.png" alt="车牌找车" /></li>
                
            </ul>
        </div>
    </body>

</html>