1、css样式背景之使用图片来做为背景
example:
<!DOCTYPE >
<html>
     <head>
           <meta http-equiv="content-type" content="text/html;charset=utf-8">
           <title>页面一</title> 
           <style>
               .logo{
                    background:url('image/gouwu.image') -19px -18px;height:20px;width:20px; no-repeat;
               }
           </style>
     </head>
     <body>
          <div class='logo' ></div>
     </body>
</html>