.word_base {
    margin: 0;
    border: 0;
    padding: 0;
    /*font-size: 13pt;*/
    letter-spacing:4px
}

    .word_base .word_nav {
        /*height: 40px;
        border-top: #060 2px solid;
        margin-top: 100px;
        border-bottom: #060 2px solid;
        background-color: #690;*/
    }

        .word_base .word_nav ul {
            margin-top: 10px;
            list-style: none;
            line-height: 40px;
            margin-left: 50px;
            overflow: hidden;/*不至于为：0*/
        }

        .word_base .word_nav li {
            display: block;
            float: left;
            padding:0;
            border-radius:4px;
                overflow: hidden;
                margin-right: 10px;
                background: #f8f8f8;
                /*padding-top: 5px;*/
                border: 1px solid #ececec;
                margin-bottom: 10px;
        }

        .word_base .word_nav a {
            display: block;
            /*color: #fff;*/
            text-decoration: none;
            padding: 0 10px;
        }

           .word_base .word_nav a:hover {
                /*background-color: #060;*/
            }
           .main_tit .desc  p
           {
               line-height: 25px;
               margin-top:5px;
           }
.main_tit .desc .fanyi {
    display: block;
    border-radius: 4px;
    overflow: hidden;
    /*margin-right: 10px;*/
    background: #F0EFE2;
    padding:12px; 
    border: 1px solid #ececec;
    margin-bottom: 10px;
    margin-top: 10px;
}