.header {
    background: url("https://images.cnblogs.com/cnblogs_com/ryanqiu/287275/o_hometownhouse.jpg") no-repeat fixed center top #FFFFFF;
    border: 1px solid #AAAAAA;
    color: #FFFFFF;
    height: 270px;
    margin-bottom: 6px;
    margin-left: 0;
    padding-left: 0;
    padding-top: 0;
    text-align: left;
    width: 850px;
}
#mytopmenu {
    background-image: url("https://images.cnblogs.com/cnblogs_com/ryanqiu/287275/o_hometownhose2.jpg");
    border: 1px solid #AAAAAA;
    font-size: 12px;
    margin-left: 0;
    margin-right: 0;
    margin-top: 10px;
    padding: 0;
    text-align: left;
    width: 850px;
}