.cont {
    width: 1000px;
}

.s_list {
    width: 475px;
    height: 280px;
    float: left;
    text-align: center;
    list-style: none;
    margin-bottom: 20px;
}

.s_list img {
    height: 220px;
}

.s_list li a {
    font-size: 14px;
}

.s_list .btn {
    width: 100%;
    height: 48px;
    margin-top: 10px;
    line-height: 24px;
    font-size: 16px;
    color: #4c4c4c;
    overflow: hidden;
    display: block;
}

.neirong h3 {
    text-align: center;
}

.xiangxi {
    margin: 10px 0 10px 0;
}

.neirong p {
    font-size: 14px;
    line-height: 2;
    margin-bottom: 5px;
    text-indent: 2em;
}