.featurette-heading {
    font-size: 30px;
    margin-top: 10px;
    margin-bottom: 10px;
}

/******新版样式******/
.bottom_div {
    width: 80%;
    margin: auto;
    margin-bottom: 20px;
}

.left_div {
    float: left;
    width: 20%;
    min-width: 100px;
    margin-top: 15px;
    padding-left: 20px;
}

    .left_div a {
        font-size: 20px;
        text-decoration: none;
        color: #888;
        border-bottom: 1px solid #cccccc;
        padding-bottom: 10px;
    }

        .left_div a:hover {
            color: #25deb9;
        }

    .left_div div {
        height: 50px;
    }


.right_div {
    float: left;
    width: 80%;
}

@media screen and (max-width: 860px) {
    /* 手机端CSS代码 */
    .left_div {
        float: left;
        width: 100%;
        padding-left: 0;
    }

        .left_div div {
            height: 50px;
            float: left;
            width: 33.33333333%;
            text-align: center;
        }

        .left_div a {
            font-size: 18px;
            border-bottom: none;
        }

    .right_div {
        float: left;
        width: 100%;
        padding: 5px;
    }
}