.wrap{width: 700px; min-height: 600px;}
    header{height: 80px;}
    nav{width: 700px;}
    nav a{height: 20px;}
    footer{height: 70px;}
    #login fieldset span{width: 80px;}
    #signup fieldset span{width: 90px;}
    #order table td, tf{width: 150px; height: 30px;}
    .booklist{height: 462px;}
    .booklist ul li{width: 150px; height: 180px;}
    .musiclist ul li{width: 530px;}
    .booklist ul li img {height: 120px;}
    .booklist ul li audio, video{width: 330px;}
    .booklist ul li video{height: 120px;}