.h_title a:first-child{
    margin-left: 40%;
}
/* 内容 */
.content{
    width: 100%;
    /*height: 1300px;*/
    background-color: #f7f7f7;
}
.content_title {
    font-size: 16px;
    padding-left: 20%;
    padding-top: 50px;
}
.news_details{
    width: 70%;
    overflow: hidden;
    margin: 0 auto;
}
.news_details> ul> li{
    float: left;
    width: 30%;
    height: 460px;
    margin-left: 25px;
    margin-top: 50px;
    background-color: #fff;
}
.news_details >ul >li > a img{
    width: 100%;
}
.news_details >ul >li > a .s_time{
    margin: 25px;
}
.news_details >ul >li > a .s_time  > span{
    margin-right: 7px;
    color: #999;
    font-size: 12px;
    font-weight: 600;   
}
.news_details >ul >li> a h2{
    margin: 0 25px;
    letter-spacing: 3px;
    font-size: 16px;
    line-height: 25px;
}