css实现可伸缩的搜索框

效果图：
代码：
<!DOCTYPE html>

<html>

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

        <title>可伸缩搜索框demo</title>

    </head>

    <body>

    <style type="text/css">

        .search-input{

                background: #ededed url(

                    http://webdesignerwall.com/demo/expandable-search-form/images/search-icon.png) no-repeat 9px;

                padding: 8px 5px 8px 32px;

                width: 100px;

                border-radius: 18px;

                color: #ccc; 

                outline: none;

                overflow:hidden;

                border-radius: 18px; 

                border: 1px solid #ddd;

                -moz-box-shadow: inset 1px 1px 10px rgba(0,0,0,0.1);

                -webkit-box-shadow: inset 1px 1px 10px rgba(0,0,0,0.1);

                box-shadow: inset 1px 1px 10px rgba(0,0,0,0.1);

                -webkit-transition: all .3s;

                -moz-transition: all .3s;

                -o-transition: all .3s;

        }

        .search-input:hover, .search-input:focus {

            border-color: #fff;

            color: #444;

            width: 200px;

        }

    </style>

    <div class="search-mb">

        <input class="search-input" type="text" value="请输入搜索内容..." onblur="if(this.value=='') value='请输入搜索内容...';" onclick="if(this.value=='请输入搜索内容...')value='';"/>

    </div>

    </body>

</html>
巴特西

css实现可伸缩的搜索框

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