.p_nav {
        height: 32px;
        margin-bottom: 8px;
        padding: 2px;
    }
    .p_nav ul {
        padding-left: 2px;
    }
    .p_nav ul li {
        background: url(http://www.chongjingtang.net/img/p_nav.jpg) center top no-repeat;
        width: 118px;
        height: 32px;
        line-height: 32px;
        text-align: center;
        float: left;
        margin-left: 1px;
        list-style: none;

    }
    .p_nav ul li a {
        font-size: 16px;
        color: #1F1514;
        font-weight: bold;
        text-decoration: none;
    }
   .p_nav  a:hover{
        color: #7F4F21;
    }