问题：右上角的空隙
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style type="text/css">
*{ margin:0; padding:0}
img{ margin:10px 18px; border:1px solid #CCC;}
.content{ border:4px solid #06F; padding:44px 15px 15px; width:750px; }
.book{ background:no-repeat url(%E7%BD%91%E9%A1%B5%E5%B8%83%E5%B1%80%E5%9F%BA%E7%A1%80/case2/images/t_book.gif ) ; background-color:#eff9f9; width:750px; }
</style>
</head>
<body>
<div class="content book">
<img src="网页布局基础/case2/images/book1.jpg" width="80px" height="80px">
<img src="网页布局基础/case2/images/book2.jpg"width="80px" height="80px">
<img src="网页布局基础/case2/images/book3.jpg"width="80px" height="80px">
<img src="网页布局基础/case2/images/book4.jpg"width="80px" height="80px">
<img src="网页布局基础/case2/images/book5.jpg"width="80px" height="80px">
<img src="网页布局基础/case2/images/book6.jpg"width="80px" height="80px">
</div>
</body>
</html>
还是不能消除右上角的空隙？、？
